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Sakamaki T, Zhang Y, Fukuma S, Cruz CM, Valdivia AC, Campaña AG, Casado J, Shang R, Nakamura E. Doubly Spiro-Conjugated Chiral Carbocycles Exhibiting SOMO-HOMO Inversion in Persistent Radical Cations. J Am Chem Soc 2024; 146:12712-12722. [PMID: 38655573 DOI: 10.1021/jacs.4c02404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Persistent chiral organic open-shell systems have captured growing interest due to their potential applications in organic spintronic and optoelectronic devices. Nevertheless, the integration of configurationally stable chirality into an organic open-shell system continues to pose challenges in molecular design. The π-extended skeleton incorporated in spiro-conjugated carbocycles can provide robust chiroptical properties and a significant stabilization of the excited and ionic radical states. However, this approach has been relatively less explored in the design of persistent organic open-shell systems. We report here the (S,S)-, (R,R)-, and meso-isomers of doubly spiro-conjugated carbocycles featuring flat and rigid carbon-bridged para-phenylenevinylene (CPV) of different conjugation lengths connected by two spiro-carbon centers, which we denote D-spiro-CPV for its quasi-dimeric structure. Our synthetic method based on a double lithiation cyclization approach enables facile production of D-spiro-CPV. D-spiro-CPVs exhibit circularly polarized luminescence (CPL) with high fluorescence quantum yields (ΦFL) resulting in a high CPL brightness of 21 M-1 cm-1 and also exhibit high thermal and photostability. The monoradical cation of D-spiro-CPV absorbing near-infrared light is notably persistent, exhibiting a half-life of 570 h under ambient conditions due to doubly spiro-conjugative stabilization. Theoretical and electrochemical studies indicate the radical cation of D-spiro-CPVs presents a non-Aufbau electron filling, exhibiting inversion of the energy level of the singly occupied molecular orbital (SOMO) and the highest (doubly) occupied molecular orbitals with the SOMO level even below the HOMO-1 level (double SHI effect). Our discoveries provide valuable insights into non-Aufbau molecules and the development of configurationally stable, optically active persistent radicals.
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Affiliation(s)
- Takumi Sakamaki
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yan Zhang
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shota Fukuma
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Carlos M Cruz
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ), Universidad de Granada (UGR), Avenida Fuente Nueva s/n, 18071 Granada, Spain
| | - Abel Cárdenas Valdivia
- Department of Physical Chemistry, Faculty of Science, University of Málaga, Campus de Teatinos, s/n, 29071 Málaga, Spain
| | - Araceli G Campaña
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ), Universidad de Granada (UGR), Avenida Fuente Nueva s/n, 18071 Granada, Spain
| | - Juan Casado
- Department of Physical Chemistry, Faculty of Science, University of Málaga, Campus de Teatinos, s/n, 29071 Málaga, Spain
| | - Rui Shang
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Eiichi Nakamura
- Department of Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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2
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Yun S, Casado J, Pérez-Silvestre J, Salamanca P, Llàcer P, Quirós R, Ruiz-Hueso R, Méndez M, Manzano L, Formiga F. Clinical suspicion, diagnosis and management of cardiac amyloidosis: update document and executive summary. Rev Clin Esp 2024; 224:288-299. [PMID: 38614320 DOI: 10.1016/j.rceng.2024.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 03/22/2024] [Indexed: 04/15/2024]
Abstract
In recent years, the interest in cardiac amyloidosis has grown exponentially. However, there is a need to improve our understanding of amyloidosis in order to optimise early detection systems. Therefore, it is crucial to incorporate solutions to improve the suspicion, diagnosis and follow-up of cardiac amyloidosis. In this sense, we designed a tool following the different phases to reach the diagnosis of cardiac amyloidosis, as well as an optimal follow-up: a) clinical suspicion, where the importance of the "red flags" to suspect it and activate the diagnostic process is highlighted; 2) diagnosis, where the diagnostic algorithm is mainly outlined; and 3) follow-up of confirmed patients. This is a practical resource that will be of great use to all professionals caring for patients with suspected or confirmed cardiac amyloidosis, to improve its early detection, as well as to optimise its accurate diagnosis and optimal follow-up.
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Affiliation(s)
- S Yun
- Bio-Heart Cardiovascular Diseases Research Group, Instituto de Investigación Biomédica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain; Programa de Atención a la Insuficiencia Cardíaca Comunitaria, Servicios de Cardiología y Medicina Interna, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain; Servicio de Medicina Interna, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
| | - J Casado
- Servicio de Medicina Interna, Hospital Universitario de Getafe, Madrid, Spain; Universidad Europea de Madrid, Madrid, Spain
| | - J Pérez-Silvestre
- Servicio de Medicina Interna, UMIPIC, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | - P Salamanca
- Servicio de Medicina Interna, Hospital Universitario Virgen Macarena, Sevilla, Spain; Departamento de Medicina, Universidad de Sevilla, Sevilla, Spain
| | - P Llàcer
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain; Departamento de Medicina y Especialidades Médicas, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, Madrid, Spain
| | - R Quirós
- Servicio de Medicina Interna, Hospital Costa del Sol, Marbella, Spain; RICAPPS, Red de Investigación en Cronicidad, Atención Primaria y Prevención y Promoción de la Salud, Spain
| | - R Ruiz-Hueso
- Servicio de Medicina Interna, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - M Méndez
- Servicio de Medicina Interna, Hospital Clínico San Carlos, Facultad de Medicina, Universidad Complutense, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - L Manzano
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain; Departamento de Medicina y Especialidades Médicas, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, Madrid, Spain
| | - F Formiga
- Servicio de Medicina Interna, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain; Instituto de Investigación Biomédica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
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3
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Conde-Martel A, Trullàs JC, Morales-Rull JL, Casado J, Carrera-Izquierdo M, Sánchez-Marteles M, Llácer P, Salamanca-Bautista P, Manzano L, Formiga F. Sex differences in clinical characteristics and outcomes in the CLOROTIC (combining loop with thiazide diuretics for decompensated heart failure) trial. Rev Clin Esp 2024; 224:67-76. [PMID: 38215973 DOI: 10.1016/j.rceng.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 11/25/2023] [Indexed: 01/14/2024]
Abstract
AIMS The addition of hydrochlorothiazide (HCTZ) to furosemide improved the diuretic response in patients with acute heart failure (AHF) in the CLOROTIC trial. Our aim was to evaluate if there were differences in clinical characteristics and outcomes according to sex. METHODS This is a post-hoc analysis of the CLOROTIC trial, including 230 patients with AHF randomized to receive HCTZ or placebo in addition to an intravenous furosemide regimen. The primary and secondary outcomes included changes in weight and patient-reported dyspnoea 72 and 96 h after randomization, metrics of diuretic response and mortality/rehospitalizations at 30 and 90 days. The influence of sex on primary, secondary and safety outcomes was evaluated. RESULTS One hundred and eleven (48%) women were included in the study. Women were older and had higher values of left ventricular ejection fraction. Men had more ischemic cardiomyopathy and chronic obstructive pulmonary disease and higher values of natriuretic peptides. The addition of HCTZ to furosemide was associated to a greatest weight loss at 72/96 h, better metrics of diuretic response and higher 24-h diuresis compared to placebo without significant differences according to sex (all p-values for interaction were not significant). Worsening renal function occurred more frequently in women (OR [95%CI]: 8.68 [3.41-24.63]) than men (OR [95%CI]: 2.5 [0.99-4.87]), p = 0.027. There were no differences in mortality or rehospitalizations at 30/90 days. CONCLUSION Adding HCTZ to intravenous furosemide is an effective strategy to improve diuretic response in AHF with no difference according to sex, but worsening renal function was more frequent in women. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov: NCT01647932; EudraCT Number: 2013-001852-36.
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Affiliation(s)
- A Conde-Martel
- Internal Medicine Department, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain; Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
| | - J C Trullàs
- Internal Medicine Department, Hospital d'Olot i Comarcal de la Garrotxa, Girona, Spain; Tissue Repair and Regeneration Laboratory (TR2Lab), Institut de Recerca i Innovació en Ciències de la Vida i de la Salut a la Catalunya Central (IrisCC), Barcelona, Spain
| | - J L Morales-Rull
- Internal Medicine Department, Heart Failure Unit, Hospital Universitari Arnau de Villanova, Institut de Recerca Biomédica (IRBLleida), Lleida, Spain
| | - J Casado
- Internal Medicine Department, Hospital Universitario de Getafe, Madrid, Spain
| | - M Carrera-Izquierdo
- Internal Medicine Department, Complejo Hospitalario de Soria, Paseo Santa Bárbara, Soria, Spain
| | - M Sánchez-Marteles
- Internal Medicine Department, Hospital Clínico Universitario 'Lozano Blesa', Aragón Research Health Institutte (IIS Aragon), Zaragoza, Spain
| | - P Llácer
- Internal Medicine Department, Hospital de Manises, Valencia, Spain
| | - P Salamanca-Bautista
- Internal Medicine Department, Hospital Universitario Virgen Macarena, Universidad de Sevilla, Sevilla, Spain
| | - L Manzano
- Internal Medicine Department, Hospital Universitario Ramón y Cajal, Madrid, Spain; IRYCIS, Universidad de Alcalá, Madrid, Spain
| | - F Formiga
- Internal Medicine Department, Hospital Universitari de Bellvitge, IDIBELL, Barcelona, Spain
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4
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Hieulle J, Garcia Fernandez C, Friedrich N, Vegliante A, Sanz S, Sánchez-Portal D, Haley MM, Casado J, Frederiksen T, Pascual JI. From Solution to Surface: Persistence of the Diradical Character of a Diindenoanthracene Derivative on a Metallic Substrate. J Phys Chem Lett 2023; 14:11506-11512. [PMID: 38088859 DOI: 10.1021/acs.jpclett.3c02401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Organic diradicals are envisioned as elementary building blocks for designing a new generation of spintronic devices and have been used in constructing prototypical field effect transistors and nonlinear optical devices. Open-shell systems, however, are also reactive, thus requiring design strategies to "protect" their radical character from the environment, especially when they are embedded in solid-state devices. Here, we report the persistence on a metallic surface of the diradical character of a diindeno[b,i]anthracene (DIAn) core protected by bulky end-groups. Our scanning tunneling spectroscopy measurements on single-molecules detected singlet-triplet excitations that were absent for DIAn species packed in assembled structures. Density functional theory simulations unravel that the molecular geometry on the metal substrate can crucially modify the value of the singlet-triplet gap via the delocalization of the radical sites. The persistence of the diradical character over metallic substrates is a promising finding for integrating radical-based materials into functional devices.
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Affiliation(s)
| | | | | | | | - Sofia Sanz
- Donostia International Physics Center (DIPC), 20018 Donostia-San Sebastián, Spain
| | - Daniel Sánchez-Portal
- Donostia International Physics Center (DIPC), 20018 Donostia-San Sebastián, Spain
- Centro de Física de Materiales MPC (CSIC/UPV-EHU), 20018 Donostia-San Sebastián, Spain
| | - Michael M Haley
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, 229071 Malaga, Spain
| | - Thomas Frederiksen
- Donostia International Physics Center (DIPC), 20018 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - José Ignacio Pascual
- CIC nanoGUNE-BRTA, 20018 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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5
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Medina Rivero S, Alonso-Navarro MJ, Tonnelé C, Marín-Beloqui JM, Suárez-Blas F, Clarke TM, Kang S, Oh J, Ramos MM, Kim D, Casanova D, Segura JL, Casado J. V-Shaped Tröger Oligothiophenes Boost Triplet Formation by CT Mediation and Symmetry Breaking. J Am Chem Soc 2023; 145:27295-27306. [PMID: 38060544 PMCID: PMC10839832 DOI: 10.1021/jacs.3c06916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/08/2023] [Accepted: 11/17/2023] [Indexed: 12/21/2023]
Abstract
A new family of molecules obtained by coupling Tröger's base unit with dicyanovinylene-terminated oligothiophenes of different lengths has been synthesized and characterized by steady-state stationary and transient time-resolved spectroscopies. Quantum chemical calculations allow us to interpret and recognize the properties of the stationary excited states as well as the time-dependent mechanisms of singlet-to-triplet coupling. The presence of the diazocine unit in Tröger's base derivatives is key to efficiently producing singlet-to-triplet intersystem crossing mediated by the role of the nitrogen atoms and of the almost orthogonal disposition of the two thiophene arms. Spin-orbit coupling-mediated interstate intersystem crossing (ISC) is activated by a symmetry-breaking process in the first singlet excited state with partial charge transfer character. This mechanism is a characteristic of these molecular triads since the independent dicyanovinylene-oligothiophene branches do not display appreciable ISC. These results show how Tröger's base coupling of organic chromophores can be used to improve the ISC efficiency and tune their photophysics.
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Affiliation(s)
- Samara Medina Rivero
- Department
of Physical Chemistry, Faculty of Science, University of Málaga, 29071 Málaga, Spain
- Department
of Physics and Astronomy, University of
Sheffield, Sheffield S3 7RH, United Kingdom
| | - Matías J. Alonso-Navarro
- Organic
Chemistry Department, Faculty of Chemistry, Complutense University of Madrid, 28040 Madrid, Spain
- Chemical
and Environmental Technology Department, Rey Juan Carlos University, 28933 Madrid, Spain
| | - Claire Tonnelé
- Donostia
International Physics Center (DIPC), 20018 Donostia, Euskadi, Spain
- Ikerbasque
Foundation for Science, 48009 Bilbao, Euskadi, Spain
| | - Jose M. Marín-Beloqui
- Department
of Physical Chemistry, Faculty of Science, University of Málaga, 29071 Málaga, Spain
| | - Fátima Suárez-Blas
- Organic
Chemistry Department, Faculty of Chemistry, Complutense University of Madrid, 28040 Madrid, Spain
- Chemical
and Environmental Technology Department, Rey Juan Carlos University, 28933 Madrid, Spain
| | - Tracey M. Clarke
- Department
of Chemistry, University College London, London WC1H 0AJ, U.K.
| | - Seongsoo Kang
- Department
of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Juwon Oh
- Department
of Chemistry, Soonchunhyang University, Asan 31538, Korea
| | - M. Mar Ramos
- Chemical
and Environmental Technology Department, Rey Juan Carlos University, 28933 Madrid, Spain
| | - Dongho Kim
- Department
of Chemistry, Yonsei University, Seoul 03722, Korea
- Division
of Energy Materials, Pohang University of
Science and Technology (POSTECH), Pohang 37673, Korea
| | - David Casanova
- Donostia
International Physics Center (DIPC), 20018 Donostia, Euskadi, Spain
- Ikerbasque
Foundation for Science, 48009 Bilbao, Euskadi, Spain
| | - José L. Segura
- Organic
Chemistry Department, Faculty of Chemistry, Complutense University of Madrid, 28040 Madrid, Spain
| | - Juan Casado
- Department
of Physical Chemistry, Faculty of Science, University of Málaga, 29071 Málaga, Spain
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6
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Moriyasu R, Quintero SM, Gómez-García CJ, Suzuki K, Kitamura C, Murata M, Alonso M, Casado J, Kato SI. Isomerism tunes the diradical character of difluorenopyrroles at constant Hückel-level anti-aromaticity. Chem Sci 2023; 14:13468-13474. [PMID: 38033889 PMCID: PMC10685319 DOI: 10.1039/d3sc03297c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/22/2023] [Indexed: 12/02/2023] Open
Abstract
A new diradical based on diindenocarbazole or difluorenopyrrole was synthesized and experimentally characterized by optical, electrochemical, and magnetic techniques, as well as quantum chemical calculations. The isomerism of these structures tunes the diradical character and the associated properties, representing a unique case of such important modulation. A full study of the electronic structure was carried out considering the perturbative interactions between different canonical forms as well as the anti-aromatic character of the molecular cores. Such a study reveals how we can tune diradical character simply by reorganizing the bonding patterns at constant chemical costs (composition).
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Affiliation(s)
- Ryotaro Moriyasu
- Department of Materials Chemistry, School of Engineering, The University of Shiga Prefecture 2500 Hassaka-cho Hikone Shiga 522-8533 Japan
| | - Sergio Moles Quintero
- Departament of Physical Chemistry, University of Málaga Campus de Teatinos s/n Málaga 29071 Spain
| | - Carlos J Gómez-García
- Departament of Inorganic Chemsitry, University of Valencia C/ DR. Moliner, 50, 46100 Brujassot Valencia Spain
| | - Kazumasa Suzuki
- Department of Material Chemistry, Graduate School of Engineering, Nagoya university Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Chitoshi Kitamura
- Department of Materials Chemistry, School of Engineering, The University of Shiga Prefecture 2500 Hassaka-cho Hikone Shiga 522-8533 Japan
| | - Michihisa Murata
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology 5-16-1 Ohmiya, Asahi-ku Osaka 535-8585 Japan
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB)Plei nlaan 2 1050 Brussels Belgium
| | - Juan Casado
- Departament of Physical Chemistry, University of Málaga Campus de Teatinos s/n Málaga 29071 Spain
| | - Shin-Ichiro Kato
- Department of Materials Chemistry, School of Engineering, The University of Shiga Prefecture 2500 Hassaka-cho Hikone Shiga 522-8533 Japan
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7
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Ji Y, Moles Quintero S, Dai Y, Marín-Beloqui JM, Zhang H, Zhan Q, Sun F, Wang D, Li X, Wang Z, Gu X, Negri F, Casado J, Zheng Y. 77 % Photothermal Conversion in Blatter-Type Diradicals: Photophysics and Photodynamic Applications. Angew Chem Int Ed Engl 2023; 62:e202311387. [PMID: 37650244 DOI: 10.1002/anie.202311387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/01/2023]
Abstract
Diradicals based on the Blatter units and connected by acetylene and alkene spacers have been prepared. All the molecules show sizably large diradical character and low energy singlet-triplet gaps. Their photo-physical properties concerning their lowest energy excited state have been studied in detail by steady-state and time-resolved absorption spectroscopy. We have fully identified the main optical absorption band and full absence of emission from the lowest energy excited state. A computational study has been also carried out that has helped to identify the presence of a conical intersection between the lowest energy excited state and the ground state which produces a highly efficient light-to-heat conversion of the absorbed radiation. Furthermore, an outstanding photo-thermal conversion 77.23 % has been confirmed, close to the highest in the diradicaloid field. For the first time, stable diradicals are applied to photo-thermal therapy of tumor cells with good stability and satisfactory performance at near-infrared region.
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Affiliation(s)
- Yu Ji
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, P. R. China
| | - Sergio Moles Quintero
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Yasi Dai
- A Dipartimento di Chimica 'Giacomo Ciamician', Università di Bologna, Via F. Selmi, 2, 40126, Bologna, Italy
- INSTM, UdR Bologna, Via F. Selmi, 2, 40126, Bologna, Italy
| | - Jose M Marín-Beloqui
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Hanjun Zhang
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, P. R. China
| | - Qian Zhan
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, P. R. China
| | - Fanxi Sun
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, P. R. China
| | - Dongsheng Wang
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, P. R. China
| | - Xiangkun Li
- Spin-X Institute, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Zhiyi Wang
- Spin-X Institute, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Xinggui Gu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Fabrizia Negri
- A Dipartimento di Chimica 'Giacomo Ciamician', Università di Bologna, Via F. Selmi, 2, 40126, Bologna, Italy
- INSTM, UdR Bologna, Via F. Selmi, 2, 40126, Bologna, Italy
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Yonghao Zheng
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, P. R. China
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials(IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P. R. China
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8
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Fernández-Rodríguez JM, Casado J, Formiga F, González-Franco A, Arévalo JC, Beltrán M, Cerqueiro González JM, Llàcer P, Manzano L, Morales-Rull JL, Pérez Silvestre J, Conde-Martel A. Executive summary of the 2023 update on the consensus regarding basic conduct during hospital admission for patients with acute heart failure. Rev Clin Esp 2023; 223:499-509. [PMID: 37507048 DOI: 10.1016/j.rceng.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023]
Abstract
Acute heart failure (AHF) is associated with significant morbidity and mortality and it stands as the primary cause of hospitalization for individuals over the age of 65 in Spain. This document outlines the main recommendations as follows: (1) Upon admission, it is crucial to conduct a comprehensive assessment, taking into account the patient's standard treatment and comorbidities, as these factors determine the prognosis of the disease. (2) During the initial hours of hospital care, prioritizing decongestive treatment is essential. It is recommended to adopt an early staged diuretic therapeutic approach based on the patient's response. (3) In order to manage patients in the stable phase, it is advisable to consider initiating and/or adjusting evidence-based drug treatments such as sacubitril/valsartan or angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers, beta blockers, aldosterone antagonists, and SGLT2 inhibitors. (4) Upon hospital discharge, utilizing a checklist is recommended to optimize the patient's management and identify the most efficient options for ensuring continuity of care post-discharge.
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Affiliation(s)
- J M Fernández-Rodríguez
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
| | - J Casado
- Servicio de Medicina Interna, Hospital Universitario de Getafe, Getafe, Madrid, Spain
| | - F Formiga
- Servicio de Medicina Interna, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - A González-Franco
- Unidad de Gestión Clínica de Medicina Interna, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - J C Arévalo
- Servicio de Medicina Interna, Hospital Universitario de Badajoz, Badajoz, Spain
| | - M Beltrán
- Servicio de Medicina Interna, Hospital Virgen del Camino, Sanlúcar de Barrameda, Cádiz, Spain
| | | | - P Llàcer
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - L Manzano
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, Departamento de Medicina y Especialidades Médicas, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | - J L Morales-Rull
- Servicio de Medicina Interna, Hospital Universitario Arnau de Vilanova, Lleida, Spain
| | - J Pérez Silvestre
- Servicio de Medicina Interna, Unidad Insuficiencia Cardiaca Paciente Crónico y Edad Avanzada, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | - A Conde-Martel
- Servicio de Medicina Interna, Hospital Universitario de Gran Canaria Dr. Negrín, Universidad de Las Palmas, Las Palmas de Gran Canaria, Spain
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9
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Vicent DJ, Pérez-Escribano M, Cárdenas-Valdivia A, Barragán A, Calbo J, Urgel JI, Écija D, Santos J, Casado J, Ortí E, Martín N. Dimeric tetrabromo- p-quinodimethanes: synthesis and structural/electronic properties. Chem Sci 2023; 14:10112-10120. [PMID: 37772123 PMCID: PMC10530488 DOI: 10.1039/d3sc01615c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 08/09/2023] [Indexed: 09/30/2023] Open
Abstract
Despite their great potential as molecular building blocks for organic synthesis, tetrabromo-p-quinodimethanes (TBQs) are a relatively unknown family of compounds. Herein, we showcase a series of five derivatives incorporating two tetrabromo-anthraquinodimethane (TBAQ) units linked by π-conjugated spacers of different nature and length. The resulting dimers TBQ1-5 are fully characterised by means of thorough spectroscopic measurements and theoretical calculations. Interestingly, owing to the steric hindrance imposed by the four bulky bromine atoms, the TBAQ fragments adopt a characteristically warped geometry, somehow resemblant of a butterfly, and the novel dimers show a complex NMR pattern with signal splittings. To ascertain whether dynamic processes regarding fluxional inversion of the butterfly configurations are involved, first-principles calculations assessing the interconversion energy barriers are performed. Three possible stereoisomers are predicted involving two diastereomers, thus accounting for the observed NMR spectra. The rotational freedom of the TBAQ units around the π-conjugated linker influences the structural and electronic properties of TBQ1-5 and modulates the electronic communication between the terminal TBAQ moieties. The role of the linker on the electronic properties is investigated by Raman and UV-vis spectroscopies, theoretical calculations and UV-vis measurements at low temperature. TBQ1-5 are of interest as less-explored structural building precursors for a variety of scientific areas. Finally, the sublimation, self-assembly and reactivity on Au(111) of TBQ3 is assessed.
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Affiliation(s)
- Diego J Vicent
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid 28040 Madrid Spain
| | | | | | - Ana Barragán
- IMDEA-Nanociencia C/ Faraday, 9, Campus de Cantoblanco 28049 Madrid Spain
| | - Joaquín Calbo
- Instituto de Ciencia Molecular, Universidad de Valencia 46980 Paterna Spain
| | - José I Urgel
- IMDEA-Nanociencia C/ Faraday, 9, Campus de Cantoblanco 28049 Madrid Spain
| | - David Écija
- IMDEA-Nanociencia C/ Faraday, 9, Campus de Cantoblanco 28049 Madrid Spain
| | - José Santos
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid 28040 Madrid Spain
| | - Juan Casado
- Departamento de Química Física, Universidad de Málaga 229071 Malaga Spain
| | - Enrique Ortí
- Instituto de Ciencia Molecular, Universidad de Valencia 46980 Paterna Spain
| | - Nazario Martín
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid 28040 Madrid Spain
- IMDEA-Nanociencia C/ Faraday, 9, Campus de Cantoblanco 28049 Madrid Spain
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10
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Long L, Medina Rivero S, Sun F, Wang D, Chekulaev D, Tonnelé C, Casanova D, Casado J, Zheng Y. A Single-Crystal Monomer to Single-Crystal Polymer Reaction Activated by a Triplet Excimer in a Zipper Mechanism. Angew Chem Int Ed Engl 2023; 62:e202308780. [PMID: 37533303 DOI: 10.1002/anie.202308780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/04/2023]
Abstract
A combined experimental and theoretical study focused on the elucidation of the polymerization mechanism of the crystal monomer to crystal polymer reaction of a bisindenedione compound in the solid state. The experimental description and characterization of the polymer product have been reported elsewhere and, in this article, we address the first detailed description of the polymerization process. This reaction pathway consists of the initial formation of a triplet excimer state that relaxes to an intermolecularly bonded triplet state that is the starting point of the propagation step of the polymerization. The overall process can be visualized in the monomer starting state as an open zipper in which a cursor or slider is formed by light absorption and the whole zipper is then closed by propagation of the cursor. To this end, variable-temperature electron spin resonance (ESR), femtosecond transient absorption spectroscopy, and vibrational Raman spectroscopic data have been implemented in combination with quantum chemical calculations. The presented mechanistic insight is of great value to understand the intricacies of such an important reaction and to envisage and diversify the products produced thereof.
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Affiliation(s)
- Lanxin Long
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, 610072, Chengdu, P. R. China
| | - Samara Medina Rivero
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
- Department of Physics & Astronomy, University of Sheffield, S3 7RH, Sheffield, UK
| | - Fanxi Sun
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, 610072, Chengdu, P. R. China
| | - Dongsheng Wang
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, 610072, Chengdu, P. R. China
| | - Dimitri Chekulaev
- Department of Physics & Astronomy, University of Sheffield, S3 7RH, Sheffield, UK
| | - Claire Tonnelé
- Donostia International Physics Center (DIPC), 20018, Donostia, Euskadi, Spain
| | - David Casanova
- Donostia International Physics Center (DIPC), 20018, Donostia, Euskadi, Spain
- Ikerbasque Foundation for Science, 48009, Bilbao, Euskadi, Spain
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Yonghao Zheng
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, 610072, Chengdu, P. R. China
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11
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Santiago-Vacas E, Anguita M, Casado J, García-Prieto CF, González-Costello J, Matalí A, González-Franco Á, Trueba-Sáiz Á, Manzano L. Current heart failure disease management and treatment in accredited units from Cardiology and Internal Medicine in Spain. Rev Clin Esp 2023:S2254-8874(23)00074-7. [PMID: 37331594 DOI: 10.1016/j.rceng.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/23/2023] [Indexed: 06/20/2023]
Abstract
BACKGROUND AND OBJECTIVES Heart failure (HF) is a complex disease with high prevalence, incidence and mortality rates leading to high healthcare burden. In Spain, there are multidisciplinary HF units coordinated by Cardiology and Internal Medicine. Our objective is to describe its current organizational model and their adherence to the latest scientific recommendations. MATERIALS AND METHODS In late 2021, a scientific committee (with cardiology and internal medicine specialists) developed a questionnaire that was sent as an online survey to 110 H F units. 73 from cardiology (accredited by SEC-Excelente) and 37 from internal medicine, (integrated in UMIPIC program). RESULTS 83 answers were received (75.5% total: 49 from cardiology and 34 from internal medicine). HF units are mostly integrated by specialists from cardiology, internal medicine and specialized nurse practitioners (34.9%). Patient characteristics from HF units are widely different when comparing those in cardiology to UMIPIC, being the latter older, more frequently with preserved ejection fraction and higher comorbidity burden. Most HF units (73.5%) currently use a hybrid face-to-face/virtual model to perform patient follow-up. Natriuretic peptides are the biomarkers most commonly used (90%). All four disease-modifying drug classes are mainly implemented at the same time (85%). Only 24% of HF units hold fluent communication with primary care. CONCLUSIONS Both models from Cardiology and Internal Medicine HF units are complementary, they include specialized nursing, they use hybrid approach for patient follow-up and they display a high adherence to the latest guideline recommendations. Coordination with primary care remains as the major improvement area.
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Affiliation(s)
- E Santiago-Vacas
- Representante nacional del grupo "Heart failure specialists of Tomorrow" (HoT), CIBERCV, Unidad de Insuficiencia Cardíaca, Hospital Germans Trias i Pujol de Badalona, Barcelona, Spain.
| | - M Anguita
- Servicio de Cardiología, Hospital Universitario Reina Sofía, IMIBIC, Universidad de Córdoba, Córdoba, Spain
| | - J Casado
- Servicio de Medicina Interna, Hospital Universitario de Getafe, Madrid, Spain
| | - C F García-Prieto
- Departamento Médico Eli Lilly and Company España, Alcobendas, Madrid, Spain
| | - J González-Costello
- Cardiovascular Diseases Research Group (BIOHEART), IDIBELL, CIBERCV, Servicio de Cardiología, Hospital Universitari de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - A Matalí
- Departamento Médico Boehringer Ingelheim España, Sant Cugat del Vallés, Barcelona, Spain
| | - Á González-Franco
- Servicio de Medicina Interna, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Á Trueba-Sáiz
- Departamento Médico Eli Lilly and Company España, Alcobendas, Madrid, Spain
| | - L Manzano
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
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12
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Diaz-Andres A, Marín-Beloqui J, Wang J, Liu J, Casado J, Casanova D. Rational design of anti-Kasha photoemission from a biazulene core embedded in an antiaromatic/aromatic hybrid. Chem Sci 2023; 14:6420-6429. [PMID: 37325150 PMCID: PMC10266467 DOI: 10.1039/d3sc00405h] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 05/22/2023] [Indexed: 06/17/2023] Open
Abstract
The violation of the Kasha photoemission rule in organic molecules has intrigued chemists since their discovery, being always of relevance given its connection with unique electronic properties of molecules. However, an understanding of the molecular structure-anti-Kasha property relationship in organic materials has not been well-established, possibly because of the few existing cases available, limiting their prospective exploration and ad hoc design. Here we introduce a novel strategy to design organic emitters from high excited states combining intramolecular J-coupling of anti-Kasha chromophores with the hindering of vibrationally-induced non-radiative decay channels by enforcing molecular rigidity. We apply our approach to the integration of two antiparallel azulene units bridged with one heptalene all inserted into a polycyclic conjugated hydrocarbon (PCH). With the help of quantum chemistry calculations, we identify a suitable PCH embedding structure and predict its anti-Kasha emission from the third high energy excited singlet state. Finally, steady fluorescence and transient absorption spectroscopy studies corroborate the photophysical properties in a recently synthesized chemical derivative with this pre-designed structure.
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Affiliation(s)
- Aitor Diaz-Andres
- Donostia International Physics Center (DIPC) 20018 Donostia Euskadi Spain
| | - Jose Marín-Beloqui
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 29071 Malaga Spain
| | - Junting Wang
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong Pokfulam Road Hong Kong China
| | - Junzhi Liu
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong Pokfulam Road Hong Kong China
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 29071 Malaga Spain
| | - David Casanova
- Donostia International Physics Center (DIPC) 20018 Donostia Euskadi Spain
- IKERBASQUE - Basque Foundation for Science 48009 Bilbao Euskadi Spain
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13
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Dai Y, Zerbini A, Casado J, Negri F. Ambipolar Charge Transport in Organic Semiconductors: How Intramolecular Reorganization Energy Is Controlled by Diradical Character. Molecules 2023; 28:4642. [PMID: 37375198 DOI: 10.3390/molecules28124642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The charged forms of π-conjugated chromophores are relevant in the field of organic electronics as charge carriers in optoelectronic devices, but also as energy storage substrates in organic batteries. In this context, intramolecular reorganization energy plays an important role in controlling material efficiency. In this work, we investigate how the diradical character influences the reorganization energies of holes and electrons by considering a library of diradicaloid chromophores. We determine the reorganization energies with the four-point adiabatic potential method using quantum-chemical calculations at density functional theory (DFT) level. To assess the role of diradical character, we compare the results obtained, assuming both closed-shell and open-shell representations of the neutral species. The study shows how the diradical character impacts the geometrical and electronic structure of neutral species, which in turn control the magnitude of reorganization energies for both charge carriers. Based on computed geometries of neutral and charged species, we propose a simple scheme to rationalize the small, computed reorganization energies for both n-type and p-type charge transport. The study is supplemented with the calculation of intermolecular electronic couplings governing charge transport for selected diradicals, further supporting the ambipolar character of the investigated diradicals.
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Affiliation(s)
- Yasi Dai
- Department of Chemistry 'Giacomo Ciamician', Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
| | - Andrea Zerbini
- Department of Chemistry 'Giacomo Ciamician', Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Fabrizia Negri
- Department of Chemistry 'Giacomo Ciamician', Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
- INSTM, UdR Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
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14
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Casado J. Minerals as catalysts of heterogeneous Electro-Fenton and derived processes for wastewater treatment: a review. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-27776-7. [PMID: 37266777 DOI: 10.1007/s11356-023-27776-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023]
Abstract
Advanced oxidation processes (AOPs) such as Fenton's reagent, which generates highly reactive oxygen species, are efficient in removing biorefractory organic pollutants from wastewater. However, Fenton's reagent has drawbacks such as the generation of iron sludge, high consumption of H2O2, and the need for pH control. To address these issues, Electro-Fenton (EF) and heterogeneous Electro-Fenton (HEF) have been developed. HEF, which uses solid catalysts, has gained increasing attention, and this review focuses on the use of mineral catalysts in HEF and derived processes. The reviewed studies highlight the advantages of using mineral catalysts, such as efficiency, stability, affordability, and environmental friendliness. However, obstacles to overcome include the agglomeration of unsupported nanoparticles and the complex preparation techniques and poor stability of some catalyst-containing cathodes. The review also discusses the optimal pH range and dosage of the heterogeneous catalysts and compares the performance of iron sulfides versus iron oxides. Although natural minerals appear to be the best choice for effluents at pH>4, no scale-up reports have been found. The need for further development in this field and the importance of considering the environmental impact of trace toxic metals or catalytic nanoparticles in the treated water on the receiving ecosystem is emphasized. Finally, the article acknowledges the high energy consumption of HEF processes at the lab scale and calls for their performance development to achieve environmentally friendly and cost-effective results using real wastewaters on a pilot scale.
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Affiliation(s)
- Juan Casado
- Facultad de Ciencias y Biociencias, Universidad Autónoma de Barcelona, Campus UAB s/n, 08038, Bellaterra, Barcelona, Spain.
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15
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Fuchs K, Rivero SM, Weidlich A, Rominger F, Israel N, Popov AA, Dreuw A, Freudenberg J, Casado J, Bunz UH. Dimerization of a Reactive Azaacene Diradical: Synthesis of a Covalent Azaacene Cage. Angew Chem Int Ed Engl 2023:e202305712. [PMID: 37219544 DOI: 10.1002/anie.202305712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/23/2023] [Accepted: 05/23/2023] [Indexed: 05/24/2023]
Abstract
Two series of regioisomeric dicyanomethylene substituted dithienodiazatetracenes with formal para- or ortho- quinodimethane subunitswere synthesized and characterized. Whereas the para-isomers (p-n, diradical index y0=0.01) are stable and isolable, the ortho-isomer (are quinoidal and closed-shell species, the elusive ortho-isomer (o-1, y0=0.98) dimerizes into a covalent azaacene cage. Four elongated σ-CC bonds are formed and the former triisopropylsilyl(TIPS)-ethynylene groups transformed into cumulene-units. The azaacene cage dimer (o-1)2 was characterized by X-ray single crystal structure analysis and temperature-dependent infrared (IR), electron paramagnetic resonance (EPR, solid state), nuclear magnetic resonance (NMR) and ultraviolet-visible (UV-Vis) spectroscopies (solution) indicating reformation of o-1.
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Affiliation(s)
- Kathleen Fuchs
- Universität Heidelberg: Universitat Heidelberg, OCI, GERMANY
| | | | - Anna Weidlich
- Universität Heidelberg IWR: Universitat Heidelberg Interdisziplinares Zentrum fur Wissenschaftliches Rechnen, IWR, GERMANY
| | - Frank Rominger
- Universität Heidelberg: Universitat Heidelberg, OCI, GERMANY
| | - Noel Israel
- Leibniz Institute for Solid State and Materials Research Dresden: Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden eV, Center of Spectroelectrochemistry, GERMANY
| | - Alexey A Popov
- Leibniz Institute for Solid State and Materials Research Dresden: Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden eV, Center of Spectroelectrochemistry, GERMANY
| | - Andreas Dreuw
- Universität Heidelberg IWR: Universitat Heidelberg Interdisziplinares Zentrum fur Wissenschaftliches Rechnen, IWR, GERMANY
| | - Jan Freudenberg
- Universität Heidelberg: Universitat Heidelberg, OCI, GERMANY
| | - Juan Casado
- University of Malaga: Universidad de Malaga, Department of Physical Chemistry, SPAIN
| | - Uwe Heiko Bunz
- Ruprecht Karls-Universität, Organisch-Chemisches Institut, Im Neuenheimer Feld 270, 69120, Heidelberg, GERMANY
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16
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Izquierdo-García P, Fernández-García JM, Medina Rivero S, Šámal M, Rybáček J, Bednárová L, Ramírez-Barroso S, Ramírez FJ, Rodríguez R, Perles J, García-Fresnadillo D, Crassous J, Casado J, Stará IG, Martín N. Helical Bilayer Nanographenes: Impact of the Helicene Length on the Structural, Electrochemical, Photophysical, and Chiroptical Properties. J Am Chem Soc 2023; 145:11599-11610. [PMID: 37129470 DOI: 10.1021/jacs.3c01088] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Helical bilayer nanographenes (HBNGs) are chiral π-extended aromatic compounds consisting of two π-π stacked hexabenzocoronenes (HBCs) joined by a helicene, thus resembling van der Waals layered 2D materials. Herein, we compare [9]HBNG, [10]HBNG, and [11]HBNG helical bilayers endowed with [9], [10], and [11]helicenes embedded in their structure, respectively. Interestingly, the helicene length defines the overlapping degree between the two HBCs (number of benzene rings involved in π-π interactions between the two layers), being 26, 14, and 10 benzene rings, respectively, according to the X-ray analysis. Unexpectedly, the electrochemical study shows that the lesser π-extended system [9]HBNG shows the strongest electron donor character, in part by interlayer exchange resonance, and more red-shifted values of emission. Furthermore, [9]HBNG also shows exceptional chiroptical properties with the biggest values of gabs and glum (3.6 × 10-2) when compared to [10]HBNG and [11]HBNG owing to the fine alignment in the configuration of [9]HBNG between its electric and magnetic dipole transition moments. Furthermore, spectroelectrochemical studies as well as the fluorescence spectroscopy support the aforementioned experimental findings, thus confirming the strong impact of the helicene length on the properties of this new family of bilayer nanographenes.
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Affiliation(s)
- Patricia Izquierdo-García
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Jesús M Fernández-García
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Samara Medina Rivero
- Departament of Physical Chemistry, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
- Department of Physics & Astronomy, University of Sheffield, S3 7RH Sheffield, U.K
| | - Michal Šámal
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Jiří Rybáček
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Lucie Bednárová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Sergio Ramírez-Barroso
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Francisco J Ramírez
- Departament of Physical Chemistry, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
| | - Rafael Rodríguez
- Institut des Sciences Chimiques de Rennes (ISCR), UMR 6226 CNRS─Univ Rennes, 35000 Rennes, France
| | - Josefina Perles
- Laboratorio DRX Monocristal, SIdI, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - David García-Fresnadillo
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes (ISCR), UMR 6226 CNRS─Univ Rennes, 35000 Rennes, France
| | - Juan Casado
- Departament of Physical Chemistry, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
| | - Irena G Stará
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Nazario Martín
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
- IMDEA-Nanociencia, C/Faraday, 9, Campus de Cantoblanco, 28049 Madrid, Spain
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17
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Yang X, Hou S, Su M, Zhan Q, Zhang H, Quintero SM, Liu X, Liu J, Hong W, Casado J, Wu Q, Lambert CJ, Zheng Y. Quasi-Free Electron States Responsible for Single-Molecule Conductance Enhancement in Stable Radical. J Phys Chem Lett 2023; 14:4004-4010. [PMID: 37083476 DOI: 10.1021/acs.jpclett.3c00536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Stable organic radicals, which possess half-filled orbitals in the vicinity of the Fermi energy, are promising candidates for electronic devices. In this Letter, using a combination of scanning-tunneling-microscopy-based break junction (STM-BJ) experiments and quantum transport theory, a stable fluorene-based radical is investigated. We demonstrate that the transport properties of a series of fluorene derivatives can be tuned by controlling the degree of localization of certain orbitals. More specifically, radical 36-FR has a delocalized half-filled orbital resulting in Breit-Wigner resonances, leading to an unprecedented conductance enhancement of 2 orders of magnitude larger than the neutral nonradical counterpart (36-FOH). In other words, conversion from a closed-shell fluorene derivative to the free radical in 36-FR opens an electron transport path which massively enhances the conductance. This new understanding of the role of radicals in single-molecule junctions opens up a novel design strategy for single-molecule-based spintronic devices.
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Affiliation(s)
- Xingzhou Yang
- Department of Pharmacy, Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
| | - Songjun Hou
- Department of Physics, Lancaster University, Lancaster LA1 4YB, U.K
| | - Meiling Su
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xia-men University, Xiamen 361005, People's Republic of China
| | - Qian Zhan
- Department of Pharmacy, Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
| | - Hanjun Zhang
- Department of Pharmacy, Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
| | - Sergio M Quintero
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, Málaga 29071, Spain
| | - Xiaodong Liu
- Department of Pharmacy, Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
| | - Junyang Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xia-men University, Xiamen 361005, People's Republic of China
| | - Wenjing Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xia-men University, Xiamen 361005, People's Republic of China
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, Málaga 29071, Spain
| | - Qingqing Wu
- Department of Physics, Lancaster University, Lancaster LA1 4YB, U.K
| | - Colin J Lambert
- Department of Physics, Lancaster University, Lancaster LA1 4YB, U.K
| | - Yonghao Zheng
- Department of Pharmacy, Sichuan Provincial People's Hospital, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610072, People's Republic of China
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18
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Miao F, Ji Y, Han B, Quintero SM, Chen H, Xue G, Cai L, Casado J, Zheng Y. Asymmetric and zwitterionic Blatter diradicals. Chem Sci 2023; 14:2698-2705. [PMID: 36908964 PMCID: PMC9993846 DOI: 10.1039/d3sc00367a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 02/01/2023] [Indexed: 02/23/2023] Open
Abstract
Asymmetric diradical molecular systems with different resonance mechanisms are largely unexplored. Herein, two conjugated asymmetric diradicals with Blatter and phenoxyl moieties (pBP and mBP) have been synthesized and studied in depth. A complete set of spectroscopic, X-ray crystallographic and magnetic techniques, together with quantum chemical calculations, have been used. The para-isomer (pBP) bears diradical and zwitterionic resonant forms, the latter by a electron delocalization mechanism, which are synergistically integrated by a sequence of nitrogen, provided by the Blatter moiety imine and amine (of different acceptor nature). In the meta-isomer (mBP), the zwitterionic form promoted in pBP by the lone-pair electron of the amine nitrogen is not available, yet it possesses a pseudo-hyperconjugation effect where the N lone pair mediates in a bonding coupling in a counter homolytic bond scission mechanism. Both electronic effects converge to promote medium diradical characters and narrow singlet-triplet gaps to the two electronic isomers. All these aspects delineate the subtle balance that shapes the electronic structure of open-shell molecules, which is even more challenging in the case of asymmetric systems, such as those described here with asymmetric phenoxyl-Blatter diradicals.
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Affiliation(s)
- Fang Miao
- Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China Chengdu 610072 People's Republic of China .,Institute of Electronic and Information Engineering of UESTC in Guangdong Zongbu Second Road No. 17 Dongguan Guangdong 523808 People's Republic of China
| | - Yu Ji
- Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China Chengdu 610072 People's Republic of China .,School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China
| | - Bo Han
- Chengdu University of Traditional Chinese Medicine State Key Laboratory Southwestern Chinese Medicine Resources Chengdu 611137 People's Republic of China
| | - Sergio Moles Quintero
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n Málaga 29071 Spain
| | - Hanjiao Chen
- Analytical & Testing Center, Sichuan University Chengdu 610064 People's Republic of China
| | - Guodong Xue
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China
| | - Lulu Cai
- Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China Chengdu 610072 People's Republic of China
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n Málaga 29071 Spain
| | - Yonghao Zheng
- Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China Chengdu 610072 People's Republic of China .,School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China
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19
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Wang J, Gámez FG, Marín-Beloqui J, Diaz-Andres A, Miao X, Casanova D, Casado J, Liu J. Synthesis of a Dicyclohepta[a,g]heptalene-Containing Polycyclic Conjugated Hydrocarbon and the Impact of Non-Alternant Topologies. Angew Chem Int Ed Engl 2023; 62:e202217124. [PMID: 36511094 DOI: 10.1002/anie.202217124] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022]
Abstract
Incorporating non-hexagonal rings into polycyclic conjugated hydrocarbons (PCHs) can significantly affect their electronic and optoelectronic properties and chemical reactivities. Here, we report the first bottom-up synthesis of a dicyclohepta[a,g]heptalene-embedded PCH (1) with four continuous heptagons, which are arranged in a "Z" shape. Compared with its structural isomer bischrysene 1 R with only hexagonal rings, compound 1 presents a distinct antiaromatic character, especially the inner heptalene core, which possesses clear antiaromatic nature. In addition, PCH 1 exhibits a narrower highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) energy gap than its benzenoid contrast 1 R, as verified by experimental measurements and theoretical calculations. Our work reported herein not only provides a new way to synthesize novel PCHs with non-alternant topologies but also offers the possibility to tune their electronic and optical properties.
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Affiliation(s)
- Junting Wang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Fernando Gordillo Gámez
- Department of Physical Chemistry, University of Malaga, Campus de Teations s/n, 229071, Malaga, Spain
| | - Jose Marín-Beloqui
- Department of Physical Chemistry, University of Malaga, Campus de Teations s/n, 229071, Malaga, Spain
| | - Aitor Diaz-Andres
- Donostia International Physics Center (DIPC), 20018, Donostia, Euskadi, Spain
| | - Xiaohe Miao
- Instrumentation and Service Center for Physical Sciences, Westlake University, Hangzhou, 310024, Zhejiang Province, China
| | - David Casanova
- Donostia International Physics Center (DIPC), 20018, Donostia, Euskadi, Spain.,IKERBASQUE-Basque Foundation for Science, 48009, Bilbao, Euskadi, Spain
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga, Campus de Teations s/n, 229071, Malaga, Spain
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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20
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Wang J, Gámez FG, Marín‐Beloqui J, Diaz‐Andres A, Miao X, Casanova D, Casado J, Liu J. Synthesis of a Dicyclohepta[
a
,
g
]heptalene‐Containing Polycyclic Conjugated Hydrocarbon and the Impact of Non‐Alternant Topologies. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202301350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Junting Wang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
| | - Fernando Gordillo Gámez
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Jose Marín‐Beloqui
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Aitor Diaz‐Andres
- Donostia International Physics Center (DIPC) 20018 Donostia, Euskadi Spain
| | - Xiaohe Miao
- Instrumentation and Service Center for Physical Sciences Westlake University Hangzhou 310024, Zhejiang Province China
| | - David Casanova
- Donostia International Physics Center (DIPC) 20018 Donostia, Euskadi Spain
- IKERBASQUE—Basque Foundation for Science 48009 Bilbao, Euskadi Spain
| | - Juan Casado
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
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21
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Valdivia AC, Dai Y, Rambaldi F, Barker JE, Dressler JJ, Zhou Z, Zhu Y, Wei Z, Petrukhina MA, Haley MM, Negri F, Casado J. Orbital Nature of Carboionic Monoradicals Made from Diradicals. Chemistry 2023; 29:e202300388. [PMID: 36749878 DOI: 10.1002/chem.202300388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/09/2023]
Abstract
The electronic, optical, and solid state properties of a series of monoradicals, anions and cations obtained from starting neutral diradicals have been studied. Diradicals based on s-indacene and indenoacenes, with benzothiophenes fused and in different orientations, feature a varying degree of diradical character in the neutral state, which is here related with the properties of the radical redox forms. The analysis of their optical features in the polymethine monoradicals has been carried out in the framework of the molecular orbital and valence bond theories. Electronic UV-Vis-NIR absorption, X-ray solid-state diffraction and quantum chemical calculations have been carried out. Studies of the different positive-/negative-charged species, both residing in the same skeletal π-conjugated backbone, are rare for organic molecules. The key factor for the dual stabilization is the presence of the starting diradical character that enables to indistinctively accommodate a pseudo-hole and a pseudo-electron defect with certainly small reorganization energies for ambipolar charge transport.
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Affiliation(s)
- Abel Cardenas Valdivia
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Yasi Dai
- Dipartimento di Chimica 'Giacomo Ciamician', Università di Bologna, Via F. Selmi, 2, 40126, Bologna, Italy) and INSTM, UdR, Bologna (Italy
| | - Filippo Rambaldi
- Dipartimento di Chimica 'Giacomo Ciamician', Università di Bologna, Via F. Selmi, 2, 40126, Bologna, Italy) and INSTM, UdR, Bologna (Italy
| | - Joshua E Barker
- Department of Chemistry &, Biochemistry and the Materials Science Institute, University of Oregon Eugene, Oregon, 97403-1253, USA
| | - Justin J Dressler
- Department of Chemistry &, Biochemistry and the Materials Science Institute, University of Oregon Eugene, Oregon, 97403-1253, USA
| | - Zheng Zhou
- Department of Chemistry, University at Albany State University of New York Albany, New York, 12222-0100, USA
| | - Yikun Zhu
- Department of Chemistry, University at Albany State University of New York Albany, New York, 12222-0100, USA
| | - Zheng Wei
- Department of Chemistry, University at Albany State University of New York Albany, New York, 12222-0100, USA
| | - Marina A Petrukhina
- Department of Chemistry, University at Albany State University of New York Albany, New York, 12222-0100, USA
| | - Michael M Haley
- Department of Chemistry &, Biochemistry and the Materials Science Institute, University of Oregon Eugene, Oregon, 97403-1253, USA
| | - Fabrizia Negri
- Dipartimento di Chimica 'Giacomo Ciamician', Università di Bologna, Via F. Selmi, 2, 40126, Bologna, Italy) and INSTM, UdR, Bologna (Italy
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
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22
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Wang J, Gordillo Gámez F, Marín‐Beloqui J, Diaz‐Andres A, Miao X, Casanova D, Casado J, Liu J. Synthesis of a Dicyclohepta[
a
,
g
]heptalene‐Containing Polycyclic Conjugated Hydrocarbon and the Impact of Non‐Alternant Topologies. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/anie.202301350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Junting Wang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
| | - Fernando Gordillo Gámez
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Jose Marín‐Beloqui
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Aitor Diaz‐Andres
- Donostia International Physics Center (DIPC) 20018 Donostia, Euskadi Spain
| | - Xiaohe Miao
- Instrumentation and Service Center for Physical Sciences Westlake University Hangzhou 310024, Zhejiang Province China
| | - David Casanova
- Donostia International Physics Center (DIPC) 20018 Donostia, Euskadi Spain
- IKERBASQUE—Basque Foundation for Science 48009 Bilbao, Euskadi Spain
| | - Juan Casado
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
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23
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Wang J, Gordillo F, Beloqui JM, Diaz-Andres A, Miao X, Casanova D, Casado J, Liu J. Synthesis of a Dicyclohepta[a,g]heptalene‐Containing Polycyclic Conjugated Hydrocarbon and the Impact of Non‐Alternant Topologies. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202217124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Junting Wang
- HKU: University of Hong Kong Chemistry HONG KONG
| | | | | | | | | | | | - Juan Casado
- University of Malaga: Universidad de Malaga Chemistry SPAIN
| | - Junzhi Liu
- University of Hongkong Department of Chemistry RM 405Hui Oi Chow Science BuildingPokfulam Road 999077 Hong Kong CHINA
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24
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Moles Quintero S, Haley MM, Kertesz M, Casado J. Polycyclic Hydrocarbons from [4n]Annulenes: Correlation versus Hybridization Forces in the Formation of Diradicaloids. Angew Chem Int Ed Engl 2022; 61:e202209138. [PMID: 35986661 PMCID: PMC9826091 DOI: 10.1002/anie.202209138] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/11/2023]
Abstract
The conceptual connections between [4n] Hückel antiaromaticity, disjoint orbitals, correlation energy, pro-aromaticity and diradical character for a variety of extended π-conjugated systems, including some salient recent examples of nanographenes and polycyclic aromatic radicals, are provided based on their [4n]annulene peripheries. The realization of such structure-property relationships has led to a beneficial pedagogic exercise establishing design guidelines for diradicaloids. The antiaromatic fingerprint of the [4n]annulene peripheries upon orbital interactions due to internal covalent connectors gives insights into the diradicaloid property of a diversity of π-conjugated molecules that have fascinated chemists recently.
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Affiliation(s)
| | - Michael M. Haley
- Department of Chemistry & Biochemistry and Materials Science InstituteUniversity of OregonEugeneOR 97403-1253USA
| | - Miklos Kertesz
- Department of Chemistry and Institute of Soft MatterGeorgetown UniversityWashingtonDC 20057-1227USA
| | - Juan Casado
- Department of Physical ChemistryUniversity of Málaga29071MálagaSpain
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25
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Palomo L, Favereau L, Senthilkumar K, Stępień M, Casado J, Ramírez FJ. Simultaneous Detection of Circularly Polarized Luminescence and Raman Optical Activity in an Organic Molecular Lemniscate. Angew Chem Int Ed Engl 2022; 61:e202206976. [PMID: 35785514 PMCID: PMC9544083 DOI: 10.1002/anie.202206976] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Indexed: 11/07/2022]
Abstract
Circularly polarized luminescence (CPL) and Raman optical activity (ROA) were observed in a single spectroscopic experiment for a purely organic molecule, an event that had so far been limited to lanthanide‐based complexes. The present observation was achieved for [16]cycloparaphenylene lemniscate, a double macrocycle constrained by a rigid 9,9′‐bicarbazole subunit, which introduces a chirality source and allows the molecule to be resolved into two configurationally stable enantiomers. Distortion of oligophenylene loops in this lemniscular structure produces a large magnetic transition dipole moment while maintaining the π‐conjugation‐induced enhancement of the Raman signal, causing the appearance of the CPL/ROA couple. A two‐photon mechanism is proposed to explain the population of the lowest‐energy excited electronic state prior to the simultaneous emission‐scattering event.
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Affiliation(s)
- Luis Palomo
- Department of Physical Chemistry Faculty of Sciences University of Málaga Campus de Teatinos 29071 Málaga Spain
| | | | - Kabali Senthilkumar
- Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Marcin Stępień
- Wydział Chemii Uniwersytet Wrocławski ul. F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Juan Casado
- Department of Physical Chemistry Faculty of Sciences University of Málaga Campus de Teatinos 29071 Málaga Spain
| | - Francisco J. Ramírez
- Department of Physical Chemistry Faculty of Sciences University of Málaga Campus de Teatinos 29071 Málaga Spain
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26
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Quintero SM, Haley MM, Kertesz M, Casado J. Polycyclic Hydrocarbons from [4n]annulenes: Correlation vs. Hybridization Forces in the Formation of Diradicaloids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sergio Moles Quintero
- University of Malaga: Universidad de Malaga Department of Physical Chemistry Facultad de CienciasCampus de Teatinos 29071 Málaga SPAIN
| | - Michael M. Haley
- University of Oregon Department of Chemistry & Biochemistry and Materials Science Institute UNITED STATES
| | - Miklos Kertesz
- Georgetown University Department of Chemistry and Institute of Soft Matter SPAIN
| | - Juan Casado
- University of Málaga Dept. of Physical Chemistry Campus de Teatinos s/n 29071 Málaga SPAIN
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27
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Mori S, Moles Quintero S, Tabaka N, Kishi R, González Núñez R, Harbuzaru A, Ponce Ortiz R, Marín-Beloqui J, Suzuki S, Kitamura C, Gómez-García CJ, Dai Y, Negri F, Nakano M, Kato SI, Casado J. Medium Diradical Character, Small Hole and Electron Reorganization Energies and Ambipolar Transistors in Difluorenoheteroles. Angew Chem Int Ed Engl 2022; 61:e202206680. [PMID: 35696258 PMCID: PMC9542770 DOI: 10.1002/anie.202206680] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Indexed: 11/06/2022]
Abstract
Four difluorenoheteroles having a central quinoidal core with the heteroring varying as furan, thiophene, its dioxide derivative and pyrrole have shown to be medium character diradicals. Solid-state structures, optical, photophysical, magnetic, and electrochemical properties have been discussed in terms of diradical character, variation of aromatic character and captodative effects (electron affinity). Organic field-effect transistors (OFETs) have been prepared, showing balanced hole and electron mobilities of the order of 10-3 cm2 V-1 s-1 or ambipolar charge transport which is first inferred from their redox amphoterism. Quantum chemical calculations show that the electrical behavior is originated from the medium diradical character which produces similar reorganization energies for hole and electron transports. The vision of a diradical as simultaneously bearing pseudo-hole and pseudo-electron defects might justify the reduced values of reorganization energies for both regimes. Structure-function relationships between diradical and ambipolar electrical behavior are revealed.
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Affiliation(s)
- Sakura Mori
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga, 522-8533, Japan
| | - Sergio Moles Quintero
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Naoki Tabaka
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga, 522-8533, Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science and Research Center for Solar Energy Chemistry (RCSEC), Graduate School of Engineering Science, and Center for Quantum Information and Quantum Biology (QIQB), Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Raúl González Núñez
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Alexandra Harbuzaru
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Rocío Ponce Ortiz
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Jose Marín-Beloqui
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
| | - Shuichi Suzuki
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Chitoshi Kitamura
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga, 522-8533, Japan
| | - Carlos J Gómez-García
- Departmento de Química Inorgánica, Universidad de Valencia, 46100 Burjasot, Valencia), Spain
| | - Yasi Dai
- Dipartimento di Chimica "Giacomo Ciamician" and INSTM, Università di Bologna, Via F. Selmi, 2, 40126, Bologna, Italy
| | - Fabrizia Negri
- Dipartimento di Chimica "Giacomo Ciamician" and INSTM, Università di Bologna, Via F. Selmi, 2, 40126, Bologna, Italy
| | - Masayoshi Nakano
- Department of Materials Engineering Science and Research Center for Solar Energy Chemistry (RCSEC), Graduate School of Engineering Science, and Center for Quantum Information and Quantum Biology (QIQB), Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Shin-Ichiro Kato
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga, 522-8533, Japan
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Andalucia-Tech Campus de Teatinos s/n, 29071, Málaga, Spain
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28
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Palomo L, Favereau L, Senthilkumar K, Stępień M, Casado J, Ramirez FJ. Simultaneous Detection of Circularly Polarized Luminescence and Raman Optical Activity in an Organic Molecular Lemniscate. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Luis Palomo
- Universidad de Malaga Physical Chemistry SPAIN
| | - Ludovic Favereau
- Universite de Rennes 1 Institut des Sciences Chimiques de Rennes FRANCE
| | | | - Marcin Stępień
- Uniwersytet Wroclawski Wydzial Chemii Wydzial Chemii POLAND
| | - Juan Casado
- Universidad de Malaga Physical Chemistry SPAIN
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29
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Casado J, Mori S, Moles Quintero S, Tabaka N, Kishi R, González Núñez R, Harbuzaru A, Ponce R, Marin Beloqui J, Suzuki S, kitamura C, Gómez C, Dai Y, Negri F, Nakano M, Kato SI. Medium Diradical Character, Small Hole and Electron Reorganization Energies and Ambipolar Transistors in Difluorenoheteroles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Juan Casado
- University of Málaga Dept. of Physical Chemistry Campus de Teatinos s/n 29071 Málaga SPAIN
| | - Sakura Mori
- The University of Shiga Prefecture: Shiga Kenritsu Daigaku Department of Chemistry & Biochemistry and Materials Science Institute JAPAN
| | | | - Naoki Tabaka
- The University of Shiga Prefecture: Shiga Kenritsu Daigaku Department of Chemistry & Biochemistry and Materials Science Institute JAPAN
| | - Ryohei Kishi
- Osaka University School of Engineering Graduate School of Engineering: Osaka Daigaku Kogakubu Daigakuin Kogaku Kenkyuka Department of Materials Engineering Science JAPAN
| | | | | | - Rocio Ponce
- University of Malaga: Universidad de Malaga Physical Chemistry SPAIN
| | | | - Shuichi Suzuki
- Osaka University School of Science Graduate School of Science: Osaka Daigaku Daigakuin Rigaku Kenkyuka Rigakubu Department of Chemistry JAPAN
| | - Chitoshi kitamura
- The University of Shiga Prefecture: Shiga Kenritsu Daigaku Department of Chemistry & Biochemistry and Materials Science Institute JAPAN
| | - Carlos Gómez
- University of Valencia: Universitat de Valencia Inorganic Chemistry SPAIN
| | - Yasi Dai
- Università di Bologna - Università di Bologna: Universita degli Studi di Bologna - Campus di Forli Dipartimento di Chimica ‘Giacomo Ciamician’ ITALY
| | - Fabrizia Negri
- Università di Bologna: Universita di Bologna Dipartimento di Chimica ‘Giacomo Ciamician’ ITALY
| | - Masayoshi Nakano
- Osaka University School of Engineering Graduate School of Engineering: Osaka Daigaku Kogakubu Daigakuin Kogaku Kenkyuka Department of Materials Engineering Science JAPAN
| | - Shin-ichiro Kato
- The University of Shiga Prefecture: Shiga Kenritsu Daigaku Department of Chemistry & Biochemistry and Materials Science Institute JAPAN
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30
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31
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Kodama T, Aoba M, Hirao Y, Rivero SM, Casado J, Kubo T. Molecular and Spin Structures of a Through‐Space Conjugated Triradical System. Angew Chem Int Ed Engl 2022; 61:e202200688. [DOI: 10.1002/anie.202200688] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Indexed: 12/15/2022]
Affiliation(s)
- Takuya Kodama
- Department of Chemistry, Graduate School of Science Osaka University Toyonaka Osaka 560-0043 Japan
- Current Address: Department of Applied Chemistry Graduate School of Engineering Osaka University Suita Osaka 565-0871 Japan
- Innovative Catalysis Science Division (ICS) Institute for Open and Transdisciplinary Research Initiatives (OTRI) Osaka University Suita Osaka 565-0871 Japan
| | - Mitsuya Aoba
- Department of Chemistry, Graduate School of Science Osaka University Toyonaka Osaka 560-0043 Japan
| | - Yasukazu Hirao
- Department of Chemistry, Graduate School of Science Osaka University Toyonaka Osaka 560-0043 Japan
| | - Samara Medina Rivero
- Department of Physical Chemistry University of Málaga Andalucia-Tech Campus de Teatinos s/n 29071 Málaga Spain
| | - Juan Casado
- Department of Physical Chemistry University of Málaga Andalucia-Tech Campus de Teatinos s/n 29071 Málaga Spain
| | - Takashi Kubo
- Department of Chemistry, Graduate School of Science Osaka University Toyonaka Osaka 560-0043 Japan
- Innovative Catalysis Science Division (ICS) Institute for Open and Transdisciplinary Research Initiatives (OTRI) Osaka University Suita Osaka 565-0871 Japan
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Boix-Constant C, García-López V, Navarro-Moratalla E, Clemente-León M, Zafra JL, Casado J, Guinea F, Mañas-Valero S, Coronado E. Strain Switching in van der Waals Heterostructures Triggered by a Spin-Crossover Metal-Organic Framework. Adv Mater 2022; 34:e2110027. [PMID: 35032055 DOI: 10.1002/adma.202110027] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/10/2022] [Indexed: 05/24/2023]
Abstract
Van der Waals heterostructures (vdWHs) provide the possibility of engineering new materials with emergent functionalities that are not accessible in another way. These heterostructures are formed by assembling layers of different materials used as building blocks. Beyond inorganic 2D crystals, layered molecular materials remain still rather unexplored, with only few examples regarding their isolation as atomically thin layers. Here, the family of van der Waals heterostructures is enlarged by introducing a molecular building block able to produce strain: the so-called spin-crossover (SCO). In these metal-organic materials, a spin transition can be induced by applying external stimuli like light, temperature, pressure, or an electric field. In particular, smart vdWHs are prepared in which the electronic and optical properties of the 2D material (graphene and WSe2 ) are clearly switched by the strain concomitant to the spin transition. These molecular/inorganic vdWHs represent the deterministic incorporation of bistable molecular layers with other 2D crystals of interest in the emergent fields of straintronics and band engineering in low-dimensional materials.
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Affiliation(s)
- Carla Boix-Constant
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, Paterna, 46980, Spain
| | - Víctor García-López
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, Paterna, 46980, Spain
| | - Efrén Navarro-Moratalla
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, Paterna, 46980, Spain
| | - Miguel Clemente-León
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, Paterna, 46980, Spain
| | - José Luis Zafra
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, Málaga, 229071, Spain
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, Málaga, 229071, Spain
| | - Francisco Guinea
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA- Nanociencia), Calle Farady 9, Cantoblanco, Madrid, 28049, Spain
| | - Samuel Mañas-Valero
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, Paterna, 46980, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, Paterna, 46980, Spain
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33
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Kodama T, Aoba M, Hirao Y, Rivero SM, Casado J, Kubo T. Molecular and Spin Structures of a Through‐Space Conjugated Triradical System. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Takuya Kodama
- Osaka University: Osaka Daigaku Department of Applied Chemistry, Graduate School of Engineering JAPAN
| | - Mitsuya Aoba
- Osaka University: Osaka Daigaku Department of Chemistry, Graduate School of Science JAPAN
| | - Yasukazu Hirao
- Osaka University: Osaka Daigaku Department of Chemistry, Graduate School of Science JAPAN
| | - Samara Medina Rivero
- University of Malaga: Universidad de Malaga Department of Physical Chemistry SPAIN
| | - Juan Casado
- University of Malaga: Universidad de Malaga Department of Physical Chemistry SPAIN
| | - Takashi Kubo
- Osaka University: Osaka Daigaku Department of Chemistry, Graduate School of Science 1-1 Machikaneyama 560-0043 Toyonaka JAPAN
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34
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Medina Rivero S, Urieta‐Mora J, Molina‐Ontoria A, Martín‐Fuentes C, Urgel JI, Zubiria‐Ulacia M, Lloveras V, Casanova D, Martínez JI, Veciana J, Écija D, Martín N, Casado J. A Trapezoidal Octacyanoquinoid Acceptor Forms Solution and Surface Products by Antiparallel Shape Fitting with Conformational Dipole Momentum Switch. Angew Chem Int Ed Engl 2021; 60:17887-17892. [PMID: 34086392 PMCID: PMC8456967 DOI: 10.1002/anie.202104294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Indexed: 11/13/2022]
Abstract
A new compound (1) formed by two antiparallelly disposed tetracyano thienoquinoidal units has been synthesized and studied by electrochemistry, UV/Vis-NIR, IR, EPR, and transient spectroscopy. Self-assembly of 1 on a Au(111) surface has been investigated by scanning tunneling microscopy. Experiments have been rationalized by quantum chemical calculations. 1 exhibits a unique charge distribution in its anionic form, with a gradient of charge yielding a neat molecular in-plane electric dipole momentum, which transforms out-of-plane after surface deposition due to twisted→folded conformational change and to partial charge transfer from Au(111). Intermolecular van der Waals interactions and antiparallel trapezoidal shape fitting lead to the formation of an optimal dense on Au(111) two-dimensional assembly of 1.
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Affiliation(s)
- Samara Medina Rivero
- Department of Physical ChemistryUniversity of MálagaAndalucia-Tech Campus de Teatinos s/n29071MálagaSpain
| | - Javier Urieta‐Mora
- IMDEA-Nanociencia, C/Faraday 9Ciudad Universitaria de Cantoblanco28049MadridSpain
- Department of Organic ChemistryFaculty of ChemistryComplutense University of Madrid28040MadridSpain
| | | | | | - José I. Urgel
- IMDEA-Nanociencia, C/Faraday 9Ciudad Universitaria de Cantoblanco28049MadridSpain
| | - Maria Zubiria‐Ulacia
- DonostiaInternational Physics Center (DIPC) & IKERBASQUE—Basque Foundation for SciencePaseo Manuel de Lardizabal, 420018Donostia-San SebastiánEuskadiSpain
| | - Vega Lloveras
- Department of Molecular Nanoscience and Organic MaterialsInstitut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on BioengineeringBiomaterials and Nanomedicine (CIBER-BBN)Campus de la UAB08193BellaterraSpain
| | - David Casanova
- DonostiaInternational Physics Center (DIPC) & IKERBASQUE—Basque Foundation for SciencePaseo Manuel de Lardizabal, 420018Donostia-San SebastiánEuskadiSpain
| | - José I. Martínez
- Department of Nanostructures and Low-dimensional MaterialsInstitute of Materials Science of Madrid (ICMM-CSIC)Ciudad Universitaria de CantoblancoC/Sor Juana Inés de la Cruz 328049MadridSpain
| | - Jaume Veciana
- Department of Molecular Nanoscience and Organic MaterialsInstitut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on BioengineeringBiomaterials and Nanomedicine (CIBER-BBN)Campus de la UAB08193BellaterraSpain
| | - David Écija
- IMDEA-Nanociencia, C/Faraday 9Ciudad Universitaria de Cantoblanco28049MadridSpain
| | - Nazario Martín
- IMDEA-Nanociencia, C/Faraday 9Ciudad Universitaria de Cantoblanco28049MadridSpain
- Department of Organic ChemistryFaculty of ChemistryComplutense University of Madrid28040MadridSpain
| | - Juan Casado
- Department of Physical ChemistryUniversity of MálagaAndalucia-Tech Campus de Teatinos s/n29071MálagaSpain
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35
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Medina Rivero S, Urieta‐Mora J, Molina‐Ontoria A, Martín‐Fuentes C, Urgel JI, Zubiria‐Ulacia M, Lloveras V, Casanova D, Martínez JI, Veciana J, Écija D, Martín N, Casado J. A Trapezoidal Octacyanoquinoid Acceptor Forms Solution and Surface Products by Antiparallel Shape Fitting with Conformational Dipole Momentum Switch. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Samara Medina Rivero
- Department of Physical Chemistry University of Málaga Andalucia-Tech Campus de Teatinos s/n 29071 Málaga Spain
| | - Javier Urieta‐Mora
- IMDEA-Nanociencia, C/Faraday 9 Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
- Department of Organic Chemistry Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | | | | | - José I. Urgel
- IMDEA-Nanociencia, C/Faraday 9 Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
| | - Maria Zubiria‐Ulacia
- Donostia International Physics Center (DIPC) & IKERBASQUE—Basque Foundation for Science Paseo Manuel de Lardizabal, 4 20018 Donostia-San Sebastián Euskadi Spain
| | - Vega Lloveras
- Department of Molecular Nanoscience and Organic Materials Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
| | - David Casanova
- Donostia International Physics Center (DIPC) & IKERBASQUE—Basque Foundation for Science Paseo Manuel de Lardizabal, 4 20018 Donostia-San Sebastián Euskadi Spain
| | - José I. Martínez
- Department of Nanostructures and Low-dimensional Materials Institute of Materials Science of Madrid (ICMM-CSIC) Ciudad Universitaria de Cantoblanco C/Sor Juana Inés de la Cruz 3 28049 Madrid Spain
| | - Jaume Veciana
- Department of Molecular Nanoscience and Organic Materials Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Campus de la UAB 08193 Bellaterra Spain
| | - David Écija
- IMDEA-Nanociencia, C/Faraday 9 Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
| | - Nazario Martín
- IMDEA-Nanociencia, C/Faraday 9 Ciudad Universitaria de Cantoblanco 28049 Madrid Spain
- Department of Organic Chemistry Faculty of Chemistry Complutense University of Madrid 28040 Madrid Spain
| | - Juan Casado
- Department of Physical Chemistry University of Málaga Andalucia-Tech Campus de Teatinos s/n 29071 Málaga Spain
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36
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Miao F, Chen H, Moles Quintero S, Xue G, Casado J, Zheng Y. A nitrogen-doped asymmetric phenalenyl with a zwitterionic ground state. Chem Commun (Camb) 2021; 57:8433-8436. [PMID: 34338698 DOI: 10.1039/d1cc02890a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an asymmetric N-doped phenalenyl (BTAP) compound has been synthesized and carefully studied for the first time. The synthesis of BTAP reveals a planar configuration and an unexpected zwitterionic ground state with the negative charge delocalized around the circumjacent part and the positive charge mainly localized on the center.
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Affiliation(s)
- Fang Miao
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, P. R. China.
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37
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Palomo L, Gordillo Gámez F, Bedi A, Gidron O, Casado J, Ramírez FJ. Raman and ROA analyses of twisted anthracenes: connecting vibrational and electronic/photonic structures. Phys Chem Chem Phys 2021; 23:13996-14003. [PMID: 34151326 PMCID: PMC8246141 DOI: 10.1039/d1cp01505b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/30/2021] [Indexed: 11/25/2022]
Abstract
In this article the Raman and Raman Optical Activity (ROA) spectra of a series of enantiomeric twisted anthracenes are presented. The evolution of their vibrational spectra is understood in the context of the variation of π-electron delocalization as a result of the twisting imparted by the belt structure and in terms of the modulation of the resonance Raman/ROA effects which are photonic properties also tuned by anthracene twisting. The Raman/ROA vibrational spectra are simulated by several theoretical approaches to account for their vibrational and electronic properties including the theoretical evaluation of resonance effects. We furthermore incorporate a vibrational and ROA activity dissection analysis as provided in the Pyvib2 program valid to establish correlations among vibrational modes of different molecules with different electronic structures and equivalent vibrational dynamics. This paper is one of the very first attempts to use ROA spectroscopy in π-conjugated molecules with twisted and helical morphologies that contrast with the well-known cases of ROA studies of chiral helicenes in which the impact of π-electron delocalization in the electronic/photonic/vibrational (Raman/ROA) spectra is negligible.
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Affiliation(s)
- Luis Palomo
- Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain.
| | - Fernando Gordillo Gámez
- Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain.
| | - Anjan Bedi
- Institute of Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel and Department of Chemistry, SRM Institute of Science and Technolog, Kattankulathur 603203, Tamil Nadu, India
| | - Ori Gidron
- Institute of Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - Juan Casado
- Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain.
| | - Francisco J Ramírez
- Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain.
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38
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Fernández Rodríguez JM, Casado J, Formiga F, González-Franco A, Arévalo JC, Beltrán M, Cerqueiro González JM, Llàcer P, Manzano L, Morales-Rull JL, Silvestre JP, Conde-Martel A. Consensus on basic conduct during the hospital admission of patients with acute heart failure. Rev Clin Esp 2021; 221:283-296. [PMID: 32139076 DOI: 10.1016/j.rce.2020.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 12/13/2019] [Accepted: 01/13/2020] [Indexed: 01/05/2023]
Abstract
Acute heart failure (AHF) is a highly prevalent clinical entity in individuals older than 45years in Spain. AHF is associated with significant morbidity and mortality and is the leading cause of hospitalisation for individuals older than 65years in Spain, a quarter of whom die within 1year of the hospitalisation. In recent years, there has been an upwards trend in hospitalisations for AHF, which increased 76.7% from 2003 to 2013. Readmissions at 30days for AHF have also increased (from 17.6% to 22.1%), at a relative mean rate of 1.36% per year, with the consequent increase in the use of resources and the economic burden for the healthcare system. The aim of this document (developed by the Heart Failure and Atrial Fibrillation Group of the Spanish Society of Internal Medicine) is to guide specialists on the most important aspects of treatment and follow-up for patients with AHF during hospitalisation and the subsequent follow-up. The main recommendations listed in this document are as follows: (1)At admission, perform a comprehensive assessment, considering the patient's standard treatment and comorbidities, given that these determine the disease prognosis to a considerable measure. (2)During the first few hours of hospital care, decongestive treatment is a priority, and a staged diuretic therapeutic approach based on the patient's response is recommended. (3)To manage patients in the stable phase, consider starting and/or adjusting evidence-based drug treatment (e.g., sacubitril/valsartan or angiotensin-converting enzyme inhibitors/angiotensinII receptor blockers, beta blockers and aldosterone antagonists). (4)At hospital discharge, use a checklist to optimise the patient's management and identify the most efficient options for maintaining continuity of care after discharge.
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Affiliation(s)
- J M Fernández Rodríguez
- Servicio de Medicina Interna, Hospital Carmen y Severo Ochoa, Cangas del Narcea, Asturias, España
| | - J Casado
- Servicio de Medicina Interna, Hospital Universitario de Getafe, Getafe, Madrid, España
| | - F Formiga
- Servicio de Medicina Interna, IDIBELL, L'Hospitalet de Llobregat, Barcelona, España
| | - A González-Franco
- Unidad de Gestión Clínica de Medicina Interna, Hospital Universitario Central de Asturias, Oviedo, España
| | - J C Arévalo
- Servicio de Medicina Interna, Hospital de Zafra, Zafra, Badajoz, España
| | - M Beltrán
- Servicio de Medicina Interna, Hospital Virgen del Camino, Sanlúcar de Barrameda, Cádiz, España
| | | | - P Llàcer
- Servicio de Medicina Interna, Hospital de Manises, Manises, Valencia, España
| | - L Manzano
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, Departamento de Medicina y Especialidades Médicas, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, IRYCIS, Madrid, España
| | - J L Morales-Rull
- Servicio de Medicina Interna, Hospital Universitario Arnau de Vilanova, Lleida, España
| | - J Pérez Silvestre
- Servicio de Medicina Interna, Unidad Insuficiencia Cardiaca Paciente Crónico y Edad Avanzada, Consorcio Hospital General Universitario de Valencia, Valencia, España
| | - A Conde-Martel
- Servicio de Medicina Interna, Hospital Universitario de Gran Canaria Dr. Negrín, Universidad de Las Palmas, Las Palmas de Gran Canaria, España.
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39
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Casado J, Górriz J. Quantifying the congestion. Rev Clin Esp 2021; 221:228-229. [PMID: 32303333 DOI: 10.1016/j.rce.2019.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 12/29/2019] [Indexed: 11/23/2022]
Affiliation(s)
- J Casado
- Unidad Funcional Multidisciplinar de Insuficiencia Cardiaca, Servicio de Medicina Interna, Hospital Universitario de Getafe, Getafe, Madrid, España.
| | - J Górriz
- Unidad Funcional Multidisciplinar de Insuficiencia Cardiaca, Servicio de Cardiología, Hospital Universitario de Getafe, Getafe, Madrid, España
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40
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Fernández Rodríguez JM, Casado J, Formiga F, González-Franco Á, Arévalo JC, Beltrán M, Cerqueiro González JM, Llàcer P, Manzano L, Morales-Rull JL, Pérez Silvestre J, Conde-Martel A. Consensus on basic conduct during the hospital admission of patients with acute heart failure. Rev Clin Esp 2021; 221:283-296. [PMID: 33998516 DOI: 10.1016/j.rceng.2020.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 01/13/2020] [Indexed: 11/30/2022]
Abstract
Acute heart failure (AHF) is a highly prevalent clinical entity in individuals older than 45 years in Spain. AHF is associated with significant morbidity and mortality and is the leading cause of hospitalisation for individuals older than 65 years in Spain, a quarter of whom die within 1 year of the hospitalisation. In recent years, there has been an upwards trend in hospitalisations for AHF, which increased 76.7% from 2003 to 2013. Readmissions at 30 days for AHF have also increased (from 17.6% to 22.1%), at a relative mean rate of 1.36% per year, with the consequent increase in the use of resources and the economic burden for the healthcare system. The aim of this document (developed by the Heart Failure and Atrial Fibrillation Group of the Spanish Society of Internal Medicine) is to guide specialists on the most important aspects of treatment and follow-up for patients with AHF during hospitalisation and the subsequent follow-up. The main recommendations listed in this document are as follows: 1) At admission, perform a comprehensive assessment, considering the patient's standard treatment and comorbidities, given that these determine the disease prognosis to a considerable measure. 2) During the first few hours of hospital care, decongestive treatment is a priority, and a staged diuretic therapeutic approach based on the patient's response is recommended. 3) To manage patients in the stable phase, consider starting and/or adjusting evidence-based drug treatment (e.g., sacubitril/valsartan or angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers, beta blockers and aldosterone antagonists). 4) At hospital discharge, use a checklist to optimise the patient's management and identify the most efficient options for maintaining continuity of care after discharge.
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Affiliation(s)
- J M Fernández Rodríguez
- Servicio de Medicina Interna, Hospital Carmen y Severo Ochoa, Cangas del Narcea, Asturias, Spain
| | - J Casado
- Servicio de Medicina Interna, Hospital Universitario de Getafe, Getafe, Madrid, Spain
| | - F Formiga
- Servicio de Medicina Interna, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Á González-Franco
- Unidad de Gestión Clínica de Medicina Interna, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - J C Arévalo
- Servicio de Medicina Interna, Hospital de Zafra, Zafra, Badajoz, Spain
| | - M Beltrán
- Medicina Interna, Hospital Virgen del Camino, Sanlúcar de Barrameda, Cádiz, Spain
| | | | - P Llàcer
- Servicio de Medicina Interna, Hospital de Manises, Valencia, Spain
| | - L Manzano
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, Departamento de Medicina y Especialidades Médicas, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, IRYCIS, Madrid, Spain
| | - J L Morales-Rull
- Servicio de Medicina Interna, Hospital Universitario Arnau de Vilanova, Lleida, Spain
| | - J Pérez Silvestre
- Servicio de Medicina Interna, Unidad Insuficiencia Cardíaca Paciente Crónico y Edad Avanzada, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | - A Conde-Martel
- Servicio de Medicina Interna, Hospital Universitario de Gran Canaria Dr. Negrín, Universidad de Las Palmas, Las Palmas de Gran Canaria, Spain.
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41
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Medina Rivero S, Shang R, Hamada H, Yan Q, Tsuji H, Nakamura E, Casado J. Non-Aufbau Spiro-Conjugated Quinoidal & Aromatic Charged Radicals. BCSJ 2021. [DOI: 10.1246/bcsj.20200385] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Samara Medina Rivero
- Department of Physical Chemistry, Faculty of Science, University of Málaga, Campus de Teatinos, s/n, 29071 Málaga, Spain
| | - Rui Shang
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - Hiroyoshi Hamada
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - Qifan Yan
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - Hayato Tsuji
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Chemistry, Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratsuka, Kanagawa 259-1293, Japan
| | - Eiichi Nakamura
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - Juan Casado
- Department of Physical Chemistry, Faculty of Science, University of Málaga, Campus de Teatinos, s/n, 29071 Málaga, Spain
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42
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Medina Rivero S, García Arroyo P, Li L, Gunasekaran S, Stuyver T, Mancheño MJ, Alonso M, Venkataraman L, Segura JL, Casado J. Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene. Chem Commun (Camb) 2021; 57:591-594. [PMID: 33325935 DOI: 10.1039/d0cc07124b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 1,1,2,2-tetrakis(4-aminophenyl)ethene with three paths of π-conjugation, linear-cis, linear-trans and a cross-conjugation, has been prepared. The molecule is able to bind to gold electrodes forming molecular junctions for single-molecule conductance measurements. Only two regimes of conduction are found experimentally. The modelling of the conductance allows to assign them to through-bond transmission in the linear case, while the cross-conjugated channel is further assisted by through-space transmission, partially alleviating the destructive quantum interference.
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Affiliation(s)
- Samara Medina Rivero
- Department of Physical Chemistry, University of Málaga, Andalucía-Tech, Campus de Teatinos s/n, Málaga 29071, Spain
| | - Paloma García Arroyo
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, Avenida Complutense, Madrid 28040, Spain
| | - Liang Li
- Department of Chemistry, Columbia University, New York 10027, USA
| | | | - Thijs Stuyver
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, Brussels 1050, Belgium
| | - María José Mancheño
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, Avenida Complutense, Madrid 28040, Spain
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, Brussels 1050, Belgium
| | | | - José L Segura
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, Avenida Complutense, Madrid 28040, Spain
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Andalucía-Tech, Campus de Teatinos s/n, Málaga 29071, Spain
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43
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Hayashi H, Barker JE, Cárdenas Valdivia A, Kishi R, MacMillan SN, Gómez-García CJ, Miyauchi H, Nakamura Y, Nakano M, Kato SI, Haley MM, Casado J. Monoradicals and Diradicals of Dibenzofluoreno[3,2- b]fluorene Isomers: Mechanisms of Electronic Delocalization. J Am Chem Soc 2020; 142:20444-20455. [PMID: 33206516 DOI: 10.1021/jacs.0c09588] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The preparation of a series of dibenzo- and tetrabenzo-fused fluoreno[3,2-b]fluorenes is disclosed, and the diradicaloid properties of these molecules are compared with those of a similar, previously reported series of anthracene-based diradicaloids. Insights on the diradical mode of delocalization tuning by constitutional isomerism of the external naphthalenes has been explored by means of the physical approach (dissection of the electronic properties in terms of electronic repulsion and transfer integral) of diradicals. This study has also been extended to the redox species of the two series of compounds and found that the radical cations have the same stabilization mode by delocalization that the neutral diradicals while the radical anions, contrarily, are stabilized by aromatization of the central core. The synthesis of the fluorenofluorene series and their characterization by electronic absorption and vibrational Raman spectroscopies, X-ray diffraction, SQUID measurements, electrochemistry, in situ UV-vis-NIR absorption spectroelectrochemistry, and theoretical calculations are presented. This work attempts to unify the properties of different series of diradicaloids in a common argument as well as the properties of the carbocations and carbanions derived from them.
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Affiliation(s)
- Hideki Hayashi
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
| | - Joshua E Barker
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Abel Cárdenas Valdivia
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga 29071, Spain
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Quantum Information and Quantum Biology Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Samantha N MacMillan
- Department of Chemistry & Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Carlos J Gómez-García
- Department of Inorganic Chemistry and Instituto de Ciencia Molecular, Universidad de Valencia, Paterna 46980, Spain
| | - Hidenori Miyauchi
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Yosuke Nakamura
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Center for Spintronics Research Network, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Quantum Information and Quantum Biology Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Shin-Ichiro Kato
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
| | - Michael M Haley
- Department of Chemistry & Biochemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga 29071, Spain
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44
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Guijarro FG, Medina Rivero S, Gunasekaran S, Arretxea I, Ponce Ortiz R, Caballero R, de la Cruz P, Langa F, Venkataraman L, Casado J. Synthesis and electronic properties of pyridine end-capped cyclopentadithiophene-vinylene oligomers. RSC Adv 2020; 10:41264-41271. [PMID: 35516533 PMCID: PMC9057865 DOI: 10.1039/d0ra08220a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/01/2020] [Indexed: 11/21/2022] Open
Abstract
A series of four oligomers of cyclopentadithiophene-vinylenes end capped with pyridine groups was prepared and their optical and electronic properties studied. Treatment with trifluoroacetic acid (TFA) leads to the bisprotonation of the nitrogens of the pyridine, which has an important impact on the optical properties. Excess treatment with TFA provokes the oxidation of the conjugated core, generating radical cations and dications. The ease of the TFA treatment in solution was extended to protonation in the solid-state where further characterization of the neutral and TFA-treated samples was carried out in electrically active substrates in organic field-effect transistors. Finally, the new molecules were found to be excellent conductors in single-molecule junctions thanks to strong electron delocalization and resonance orbital mediated transport. These studies show the opening of a spectrum of possibilities by suitable terminal substitution of π-cores.
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Affiliation(s)
- Fernando G Guijarro
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha Toledo Spain
| | - Samara Medina Rivero
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 229071 Malaga Spain
| | | | - Iratxe Arretxea
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 229071 Malaga Spain
| | - Rocío Ponce Ortiz
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 229071 Malaga Spain
| | - Rubén Caballero
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha Toledo Spain
| | - Pilar de la Cruz
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha Toledo Spain
| | - Fernando Langa
- Instituto de Nanociencia, Nanotecnología y Materiales Moleculares (INAMOL), Universidad de Castilla-La Mancha Toledo Spain
| | - Latha Venkataraman
- Department of Chemistry, Columbia University New York 10027 USA
- Department of Applied Physics and Applied Mathematics, Columbia University New York 10027 USA
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n 229071 Malaga Spain
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45
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Ni Y, Gordillo-Gámez F, Peña Alvarez M, Nan Z, Li Z, Wu S, Han Y, Casado J, Wu J. A Chichibabin's Hydrocarbon-Based Molecular Cage: The Impact of Structural Rigidity on Dynamics, Stability, and Electronic Properties. J Am Chem Soc 2020; 142:12730-12742. [PMID: 32589415 DOI: 10.1021/jacs.0c04876] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A three-dimensional π-conjugated polyradicaloid molecular cage c-Ph14, consisting of three Chichibabin's hydrocarbon motifs connected by two benzene-1,3,5-triyl bridgeheads, was synthesized. Compared with its linear model compound l-Ph4, the prism-like c-Ph14 has a more rigid structure, which shows significant impact on the molecular dynamics, stability, and electronic properties. A higher rotation energy barrier for the quinoidal biphenyl units was determined in c-Ph14 (15.64 kcal/mol) than that of l-Ph4 (11.40 kcal/mol) according to variable-temperature NMR measurements, leading to improved stability, a smaller diradical character, and an increased singlet-triplet energy gap. The pressure-dependent Raman spectroscopic studies on the rigid cage c-Ph14 revealed a quinoidal-to-aromatic transformation along the biphenyl bridges. In addition, the ellipsoidal cavity in the cage allowed selective encapsulation of fullerene C70 over C60, with an associate constant of about 1.43 × 104 M-1. Moreover, c-Ph14 and l-Ph4 exhibited similar redox behavior and their cationic species (c-Ph146+ and l-Ph42+) were obtained by chemical oxidation, and the structures were identified by X-ray crystallographic analysis. The biphenyl unit showed a twisted conformation in l-Ph42+ and remained coplanarity in c-Ph146+. Notably, molecules of c-Ph146+ form a one-dimensional columnar structure via close π-π stacking between the bridgeheads.
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Affiliation(s)
- Yong Ni
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Fernando Gordillo-Gámez
- Department of Physical Chemistry, Faculty of Science, University of Málaga, CEI Andalucía Tech, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Miriam Peña Alvarez
- Center for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3JZ Edinburgh, United Kingdom
| | - Zhihan Nan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Zhengtao Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Shaofei Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Yi Han
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Juan Casado
- Department of Physical Chemistry, Faculty of Science, University of Málaga, CEI Andalucía Tech, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Jishan Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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46
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Zou Y, Bonal V, Moles Quintero S, Boj PG, Villalvilla JM, Quintana JA, Li G, Wu S, Jiang Q, Ni Y, Casado J, Díaz‐García MA, Wu J. Perylene‐Fused, Aggregation‐Free Polycyclic Aromatic Hydrocarbons for Solution‐Processed Distributed Feedback Lasers. Angew Chem Int Ed Engl 2020; 59:14927-14934. [DOI: 10.1002/anie.202004789] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Ya Zou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Víctor Bonal
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Sergio Moles Quintero
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Pedro G. Boj
- Departamento Óptica Farmacología y Anatomía, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - José M. Villalvilla
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - José A. Quintana
- Departamento Óptica Farmacología y Anatomía, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Guangwu Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaofei Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Qing Jiang
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yong Ni
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Juan Casado
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - María A. Díaz‐García
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Jishan Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Binhai New City Fuzhou 350207 China
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47
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Zou Y, Bonal V, Moles Quintero S, Boj PG, Villalvilla JM, Quintana JA, Li G, Wu S, Jiang Q, Ni Y, Casado J, Díaz‐García MA, Wu J. Perylene‐Fused, Aggregation‐Free Polycyclic Aromatic Hydrocarbons for Solution‐Processed Distributed Feedback Lasers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ya Zou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Víctor Bonal
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Sergio Moles Quintero
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Pedro G. Boj
- Departamento Óptica Farmacología y Anatomía, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - José M. Villalvilla
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - José A. Quintana
- Departamento Óptica Farmacología y Anatomía, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Guangwu Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaofei Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Qing Jiang
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yong Ni
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Juan Casado
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - María A. Díaz‐García
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Jishan Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Binhai New City Fuzhou 350207 China
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48
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Dressler JJ, Cárdenas Valdivia A, Kishi R, Rudebusch GE, Ventura AM, Chastain BE, Gómez-García CJ, Zakharov LN, Nakano M, Casado J, Haley MM. Diindenoanthracene Diradicaloids Enable Rational, Incremental Tuning of Their Singlet-Triplet Energy Gaps. Chem 2020. [DOI: 10.1016/j.chempr.2020.02.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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49
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Gu Y, Muñoz-Mármol R, Wu S, Han Y, Ni Y, Díaz-García MA, Casado J, Wu J. Cove-Edged Nanographenes with Localized Double Bonds. Angew Chem Int Ed Engl 2020; 59:8113-8117. [PMID: 32011764 DOI: 10.1002/anie.202000326] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Indexed: 11/08/2022]
Abstract
The efficient synthesis and electronic properties of two large-size cove-edged nanographenes (NGs), CN1 and CN2, are presented. X-ray crystallographic analysis reveals a contorted backbone for both molecules owing to the steric repulsion at the inner cove position. Noticeably, the dominant structures of these molecules contain four (for CN1) or six (for CN2) localized C=C double bonds embedded in nine (for CN1) or twelve (for CN2) aromatic sextet rings according to Clar's formula, which is supported by bond length analysis and theoretical (NICS, ACID) calculations. Furthermore, Raman spectra exhibit a band associated with the longitudinal CC stretching mode of olefinic double bonds. Owing to the existence of the additional olefinic bonds, both compounds show a small band gap (1.84 eV for CN1 and 1.37 eV for CN2). They also display moderate fluorescence quantum yield (35 % for CN1 and 50 % for CN2) owing to the contorted geometry, which can suppress aggregation in solution.
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Affiliation(s)
- Yanwei Gu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Rafael Muñoz-Mármol
- Departamento Física Aplicada and Instituto Universitario de, Materiales de Alicante, Universidad de Alicante, 03080, Alicante, Spain
| | - Shaofei Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Yi Han
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Yong Ni
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - María A Díaz-García
- Departamento Física Aplicada and Instituto Universitario de, Materiales de Alicante, Universidad de Alicante, 03080, Alicante, Spain
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga, Campus de Teations s/n, 229071, Malaga, Spain
| | - Jishan Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
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50
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Palomo L, Rodríguez R, Medina S, Quiñoá E, Casado J, Freire F, Ramírez FJ. Raman Optical Activity (ROA) as a New Tool to Elucidate the Helical Structure of Poly(phenylacetylene)s. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000651] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Luis Palomo
- Departamento de Química Física Facultad de Ciencias Universidad de Málaga Campus de Teatinos Málaga 29071 Spain
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Samara Medina
- Departamento de Química Física Facultad de Ciencias Universidad de Málaga Campus de Teatinos Málaga 29071 Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Juan Casado
- Departamento de Química Física Facultad de Ciencias Universidad de Málaga Campus de Teatinos Málaga 29071 Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Francisco J. Ramírez
- Departamento de Química Física Facultad de Ciencias Universidad de Málaga Campus de Teatinos Málaga 29071 Spain
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