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Borislavov L, Nedyalkova M, Tadjer A, Aydemir O, Romanova J. Machine Learning-Based Screening for Potential Singlet Fission Chromophores: The Challenge of Imbalanced Data Sets. J Phys Chem Lett 2023; 14:10103-10112. [PMID: 37921710 PMCID: PMC10659028 DOI: 10.1021/acs.jpclett.3c02365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/13/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Abstract
Excitation with one photon of a singlet fission (SF) material generates two triplet excitons, thus doubling the solar cell efficiency. Therefore, the SF molecules are regarded as new generation organic photovoltaics, but it is hard to identify them. Recently, it was demonstrated that molecules of low-to-intermediate diradical character (DRC) are potential SF chromophores. This prompts a low-cost strategy for finding new SF candidates by computational high-throughput workflows. We propose a machine learning aided screening for SF entrants based on their DRC. Our data set comprises 469 784 compounds extracted from the PubChem database, structurally rich but inherently imbalanced regarding DRC values. We developed well performing classification models that can retrieve potential SF chromophores. The latter (∼4%) were analyzed by K-means clustering to reveal qualitative structure-property relationships and to extract strategies for molecular design. The developed screening procedure and data set can be easily adapted for applications of diradicaloids in photonics and spintronics.
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Affiliation(s)
- Lyuben Borislavov
- Institute
of General and Inorganic Chemistry, Bulgarian
Academy of Sciences, 11 Akad. Georgi Bonchev str., 1113 Sofia, Bulgaria
| | - Miroslava Nedyalkova
- Chemistry
Department, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland
- Faculty
of Chemistry and Pharmacy, Sofia University, 1 James Bourchier Blvd., 1164 Sofia, Bulgaria
| | - Alia Tadjer
- Faculty
of Chemistry and Pharmacy, Sofia University, 1 James Bourchier Blvd., 1164 Sofia, Bulgaria
| | - Onder Aydemir
- Faculty
of Engineering, Department of Electrical & Electronics Engineering, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Julia Romanova
- Faculty
of Chemistry and Pharmacy, Sofia University, 1 James Bourchier Blvd., 1164 Sofia, Bulgaria
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2
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Zhang H, Zou J, Ren X, Li S. Equation-of-Motion Block-Correlated Coupled Cluster Method for Excited Electronic States of Strongly Correlated Systems. J Phys Chem Lett 2023:6792-6799. [PMID: 37478417 DOI: 10.1021/acs.jpclett.3c01474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
An equation-of-motion block-correlated coupled cluster method based on the generalized valence bond wave function (EOM-GVB-BCCC) is proposed to describe low-lying excited states for strongly correlated systems. The EOM-GVB-BCCC2b method with up to two-pair correlation has been implemented and tested for a few strongly correlated systems. For a water hexamer with stretched O-H bonds, which is beyond the capability of the CASSCF method, EOM-GVB-BCCC2b provides very close results as the density matrix renormalization group (DMRG). For four conjugated diradical species with triplet ground states, we found that their vertical S-T gaps from EOM-GVB-BCCC2b are also quite consistent with the DMRG results. This new method is expected to be a promising theoretical tool for describing the low-lying excited states of strongly correlated systems with large active spaces.
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Affiliation(s)
- Haodong Zhang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, New Cornerstone Science Laboratory, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Jingxiang Zou
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, New Cornerstone Science Laboratory, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Xiaochuan Ren
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, New Cornerstone Science Laboratory, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
| | - Shuhua Li
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, New Cornerstone Science Laboratory, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People's Republic of China
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3
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Kasemthaveechok S, Abella L, Crassous J, Autschbach J, Favereau L. Organic radicals with inversion of SOMO and HOMO energies and potential applications in optoelectronics. Chem Sci 2022; 13:9833-9847. [PMID: 36128246 PMCID: PMC9430691 DOI: 10.1039/d2sc02480b] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/06/2022] [Indexed: 11/21/2022] Open
Abstract
Organic radicals possessing an electronic configuration in which the energy of the singly occupied molecular orbital (SOMO) is below the highest doubly occupied molecular orbital (HOMO) level have recently attracted significant interest, both theoretically and experimentally. The peculiar orbital energetics of these SOMO-HOMO inversion (SHI) organic radicals set their electronic properties apart from the more common situation where the SOMO is the highest occupied orbital of the system. This review gives a general perspective on SHI, with key fundamental aspects regarding the electronic and structural factors that govern this particular electronic configuration in organic radicals. Selected examples of reported compounds with SHI are highlighted to establish molecular guidelines for designing this type of radical, and to showcase the potential of SHI radicals in organic spintronics as well as for the development of more stable luminescent radicals for OLED applications.
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Affiliation(s)
| | - Laura Abella
- Department of Chemistry, University at Buffalo, State University of New York Buffalo New York 14260 USA
| | | | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York Buffalo New York 14260 USA
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4
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Maurya YK, Chmielewski PJ, Cybińska J, Prajapati B, Lis T, Kang S, Lee S, Kim D, Stępień M. Naphthalimide-Fused Dipyrrins: Tunable Halochromic Switches and Photothermal NIR-II Dyes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105886. [PMID: 35174648 PMCID: PMC9259717 DOI: 10.1002/advs.202105886] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/18/2022] [Indexed: 06/14/2023]
Abstract
A family of tunable halochromic switches is developed using a naphthalimide-fused dipyrrin as the core π-conjugated motif. Electronic properties of these dipyrrins are tuned by substitution of their alpha and meso positions with aryl groups of variable donor-acceptor strength. The first protonation results in a conformational change that enhances electronic coupling between the dipyrrin chromophore and the meso substituent, leading to halochromic effects that occasionally exceed 200 nm and switch the absorption between the near-infrared (NIR)-I and NIR-II ranges. A NIR-II photothermal effect, switchable by acid-base chemistry is demonstrated for selected dipyrrins. Further protonation is possible for derivatives bearing additional amino groups, leading to up to four halochromic switching step. The most electron-rich dipyrrins are also susceptible to chemical oxidation, yielding NIR-absorbing radical cations and closed-shell dications.
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Affiliation(s)
- Yogesh Kumar Maurya
- Wydział ChemiiUniwersytet Wrocławskiul. F. Joliot‐Curie 14Wrocław50‐383Poland
| | | | - Joanna Cybińska
- Wydział ChemiiUniwersytet Wrocławskiul. F. Joliot‐Curie 14Wrocław50‐383Poland
- PORT – Polski Ośrodek Rozwoju Technologiiul. Stabłowicka 147Wrocław54‐066Poland
| | - Bibek Prajapati
- Wydział ChemiiUniwersytet Wrocławskiul. F. Joliot‐Curie 14Wrocław50‐383Poland
| | - Tadeusz Lis
- Wydział ChemiiUniwersytet Wrocławskiul. F. Joliot‐Curie 14Wrocław50‐383Poland
| | - Seongsoo Kang
- Department of Chemistry and Spectroscopy Laboratory for Functional π‐Electronic SystemsYonsei UniversitySeoul03722Korea
| | - Seokwon Lee
- PORT – Polski Ośrodek Rozwoju Technologiiul. Stabłowicka 147Wrocław54‐066Poland
| | - Dongho Kim
- Department of Chemistry and Spectroscopy Laboratory for Functional π‐Electronic SystemsYonsei UniversitySeoul03722Korea
| | - Marcin Stępień
- Wydział ChemiiUniwersytet Wrocławskiul. F. Joliot‐Curie 14Wrocław50‐383Poland
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5
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Khurana R, Bajaj A, Ali ME. Tuning the magnetic properties of a diamagnetic di-Blatter's zwitterion to antiferro- and ferromagnetically coupled diradicals. Phys Chem Chem Phys 2022; 24:2543-2553. [PMID: 35024707 DOI: 10.1039/d1cp04807d] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the quest of obtaining organic molecular magnets based on stable diradicals, we have tuned the inherent zwitterionic ground state of tetraphenylhexaazaanthracene (TPHA), a molecule containing two Blatter's moieties, by adopting two different strategies. In the first strategy, we have increased the length of the coupler between the two radical moieties and observed a transition from the zwitterionic ground state to the diradicalized state. With a larger coupler, ferromagnetic interactions are realized based on density functional theory (DFT) and wave-function theory (WFT) based complete active space self-consistent field (CASSCF)-N-electron valence state perturbation theory (NEVPT2) methods. An analysis based on the extent of spin contamination, diradical character, CASSCF orbital occupation number, Head-Gordon's index, HOMO-LUMO and SOMOs energy gaps is demonstrated that marks the transition of the ground state in these systems. In another approach, we systematically explore the effect of push-pull substitution on the way to obtain molecules based on a TPHA skeleton with diradicaloid state and, in some cases, even a triplet ground state.
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Affiliation(s)
- Rishu Khurana
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab, 140306, India.
| | - Ashima Bajaj
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab, 140306, India.
| | - Md Ehesan Ali
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab, 140306, India.
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6
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Hartmann H. The Historical Dyestuff Collection at the Technical University Dresden: A Cultural–Historical Treasure and a Rich Source of Light‐Absorbing Materials with Great Prospects for Current and Future Research. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Horst Hartmann
- Fakultät für Chemie und Lebensmittelchemie Technische Universität Dresden 01062 Dresden Germany
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7
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Konishi A, Yasuda M. Breathing New Life into Nonalternant Hydrocarbon Chemistry: Syntheses and Properties of Polycyclic Hydrocarbons Containing Azulene, Pentalene, and Heptalene Frameworks. CHEM LETT 2021. [DOI: 10.1246/cl.200650] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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8
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Mahata A, Chandra S, Maiti A, Rao DK, Yildiz CB, Sarkar B, Jana A. α,α′-Diamino-p-quinodimethanes with Three Stable Oxidation States. Org Lett 2020; 22:8332-8336. [DOI: 10.1021/acs.orglett.0c02964] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alok Mahata
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500046, India
| | - Shubhadeep Chandra
- Lehrstuhl für Anorganische Koordinationschemie, Institut für Anorganische Chemie, Universität Stuttgart, Fakultät Chemie, Pfaffenwaldring 55, D-70569, Stuttgart, Germany
| | - Avijit Maiti
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500046, India
| | - D. Krishna Rao
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500046, India
| | - Cem B. Yildiz
- Department of Aromatic and Medicinal Plants, University of Aksaray, Aksaray-68100, Turkey
| | - Biprajit Sarkar
- Lehrstuhl für Anorganische Koordinationschemie, Institut für Anorganische Chemie, Universität Stuttgart, Fakultät Chemie, Pfaffenwaldring 55, D-70569, Stuttgart, Germany
| | - Anukul Jana
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500046, India
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9
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Cai K, Mao H, Liu WG, Qiu Y, Shi Y, Zhang L, Shen D, Chen H, Jiao Y, Wu H, Liu Z, Feng Y, Stern CL, Wasielewski MR, Goddard WA, Stoddart JF. Highly Stable Organic Bisradicals Protected by Mechanical Bonds. J Am Chem Soc 2020; 142:7190-7197. [DOI: 10.1021/jacs.0c01989] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Kang Cai
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Haochuan Mao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Wei-Guang Liu
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Yunyan Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yi Shi
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Dengke Shen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hongliang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Huang Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zhichang Liu
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
| | - Yuanning Feng
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Charlotte L. Stern
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael R. Wasielewski
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - William A. Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - J. Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Molecular Design and Synthesis, Tianjin University, 92 Weijin Road, Tianjin 300072, China
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
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10
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Hattori Y, Michail E, Schmiedel A, Moos M, Holzapfel M, Krummenacher I, Braunschweig H, Müller U, Pflaum J, Lambert C. Luminescent Mono-, Di-, and Triradicals: Bridging Polychlorinated Triarylmethyl Radicals by Triarylamines and Triarylboranes. Chemistry 2019; 25:15463-15471. [PMID: 31478580 PMCID: PMC6916318 DOI: 10.1002/chem.201903007] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Indexed: 12/31/2022]
Abstract
Up to three polychlorinated pyridyldiphenylmethyl radicals bridged by a triphenylamine carrying electron withdrawing (CN), neutral (Me), or donating (OMe) groups were synthesized and analogous radicals bridged by tris(2,6-dimethylphenyl)borane were prepared for comparison. All compounds were as stable as common closed-shell organic compounds and showed significant fluorescence upon excitation. Electronic, magnetic, absorption, and emission properties were examined in detail, and experimental results were interpreted using DFT calculations. Oxidation potentials, absorption and emission energies could be tuned depending on the electron density of the bridges. The triphenylamine bridges mediated intramolecular weak antiferromagnetic interactions between the radical spins, and the energy difference between the high spin and low spin states was determined by temperature dependent ESR spectroscopy and DFT calculations. The fluorescent properties of all radicals were examined in detail and revealed no difference for high and low spin states which facilitates application of these dyes in two-photon absorption spectroscopy and OLED devices.
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Affiliation(s)
- Yohei Hattori
- Institute of Organic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Evripidis Michail
- Institute of Organic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Alexander Schmiedel
- Institute of Organic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Michael Moos
- Institute of Organic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Marco Holzapfel
- Institute of Organic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Ivo Krummenacher
- Institute of Inorganic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Holger Braunschweig
- Institute of Inorganic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Ulrich Müller
- Institute of PhysicsJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Jens Pflaum
- Institute of PhysicsJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Christoph Lambert
- Institute of Organic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
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11
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The Low Lying Double-Exciton State of Conjugated Diradicals: Assessment of TDUDFT and Spin-Flip TDDFT Predictions. COMPUTATION 2019. [DOI: 10.3390/computation7040068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Conjugated singlet ground state diradicals have received remarkable attention owing to their potential applications in optoelectronic devices. A distinctive character of these systems is the location of the double-exciton state, a low lying excited state dominated by the doubly excited HOMO,HOMOLUMO,LUMO configuration, (where HOMO=highest occupied molecular orbital, LUMO=lowest unoccupied molecular orbital) which may influence optical and other photophysical properties. In this contribution we investigate this specific excited state, for a series of recently synthesized conjugated diradicals, employing time dependent density functional theory (TDDFT) based on the unrestricted parallel spin reference configuration in the spin-flip formulation (SF-TDDFT) and standard TD calculations based on the unrestricted antiparallel spin reference configuration (TDUDFT). The quality of computed results is assessed considering diradical and multiradical descriptors, and the excited state wavefunction composition.
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12
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Ye F, Liu Y, Chen J, Liu SH, Zhao W, Yin J. Tetraphenylene-Coated Near-Infrared Benzoselenodiazole Dye: AIE Behavior, Mechanochromism, and Bioimaging. Org Lett 2019; 21:7213-7217. [PMID: 31429582 DOI: 10.1021/acs.orglett.9b02292] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A D-π-A-π-D type of tetraphenylene-coating benzoselenodiazole fluorescence dye with near-infrared emission has been designed and constructed. This dye shows an obvious aggregation-induced-emission behavior. In the solid state, it exhibits a reversible mechanochromism with the changes of near-infrared emission. Furthermore, this dye can be used to track the lysosomes of living cells and images in vivo.
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Affiliation(s)
- Fengying Ye
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis; International Joint Research Center for Intelligent Biosensing Technology and Health; College of Chemistry , Central China Normal University , Wuhan 430079 , P.R. China
| | - Yuhong Liu
- National and Local Joint Engineering Research, Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P.R. China
| | - Jianhua Chen
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis; International Joint Research Center for Intelligent Biosensing Technology and Health; College of Chemistry , Central China Normal University , Wuhan 430079 , P.R. China
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis; International Joint Research Center for Intelligent Biosensing Technology and Health; College of Chemistry , Central China Normal University , Wuhan 430079 , P.R. China
| | - Wenbo Zhao
- National and Local Joint Engineering Research, Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , P.R. China
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis; International Joint Research Center for Intelligent Biosensing Technology and Health; College of Chemistry , Central China Normal University , Wuhan 430079 , P.R. China
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13
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Liu Y, Varava P, Fabrizio A, Eymann LYM, Tskhovrebov AG, Planes OM, Solari E, Fadaei-Tirani F, Scopelliti R, Sienkiewicz A, Corminboeuf C, Severin K. Synthesis of aminyl biradicals by base-induced Csp 3-Csp 3 coupling of cationic azo dyes. Chem Sci 2019; 10:5719-5724. [PMID: 31293757 PMCID: PMC6568049 DOI: 10.1039/c9sc01502g] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/01/2019] [Indexed: 12/05/2022] Open
Abstract
The synthesis of the industrially important polymer parylene is achieved by polymerization of p-quinodimethane (p-QDM). The polymerization is thought to proceed via a biradical p-QDM dimer, but isolation or characterization of such a biradical has remained elusive. Here, we describe the synthesis of an aza-analogue of this p-QDM dimer. The biradical is formed by base-induced dimerization of an azoimidazolium dye. Due to the presence of sterically shielded aminyl radicals instead of terminal H2Ċ groups, the stability of this dimer is sufficient for analyses by ESR spectroscopy and X-ray crystallography. A similar Csp3-Csp3 coupling was observed for an azotriazolium dye, suggesting that base-induced C-C coupling reactions can be realized for different types of azo dyes.
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Affiliation(s)
- Yizhu Liu
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Paul Varava
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Alberto Fabrizio
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Léonard Y M Eymann
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Alexander G Tskhovrebov
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Ophélie Marie Planes
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Euro Solari
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Farzaneh Fadaei-Tirani
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | | | - Clémence Corminboeuf
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
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14
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Abstract
A family of push-pull quinoidal porphyrin monomers has been prepared from a meso-formyl porphyrin by bromination, thioacetal formation, palladium-catalyzed coupling with malononitrile and oxidation with DDQ. Attempts at extending this synthesis to a push-pull quinoidal/cumulenic porphyrin dimer were not successful. The crystal structures of the quinoidal porphyrins indicate that there is no significant contribution from singlet biradical or zwitterionic resonance forms. The crystal structure of an ethyne-linked porphyrin dimer shows that the torsion angle between the porphyrin units is only about 3°, in keeping with crystallographic results on related compounds, but contrasting with the torsion angle of about 35° predicted by computational studies. The free-base quinoidal porphyrin monomers form tightly π-stacked layer structures, despite their curved geometries and bulky aryl substituents.
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Affiliation(s)
- Martin J Smith
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, UK.
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Konishi A, Okada Y, Kishi R, Nakano M, Yasuda M. Enhancement of Antiaromatic Character via Additional Benzoannulation into Dibenzo[a,f]pentalene: Syntheses and Properties of Benzo[a]naphtho[2,1-f]pentalene and Dinaphtho[2,1-a,f]pentalene. J Am Chem Soc 2018; 141:560-571. [DOI: 10.1021/jacs.8b11530] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yui Okada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Okamoto Y, Tanioka M, Muranaka A, Miyamoto K, Aoyama T, Ouyang X, Kamino S, Sawada D, Uchiyama M. Stable Thiele’s Hydrocarbon Derivatives Exhibiting Near-Infrared Absorption/Emission and Two-Step Electrochromism. J Am Chem Soc 2018; 140:17857-17861. [DOI: 10.1021/jacs.8b11092] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuta Okamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masaru Tanioka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Atsuya Muranaka
- Cluster for Pioneering
Research (CPR), Advanced Elements Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tetsuya Aoyama
- Cluster for Pioneering
Research (CPR), Advanced Elements Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Xingmei Ouyang
- Cluster for Pioneering
Research (CPR), Advanced Elements Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Shinichiro Kamino
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
- Next-Generation
Imaging Team, RIKEN Center for Biosystems Dynamics Research (BDR), 6-7-3 minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Daisuke Sawada
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
- Next-Generation
Imaging Team, RIKEN Center for Biosystems Dynamics Research (BDR), 6-7-3 minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Cluster for Pioneering
Research (CPR), Advanced Elements Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
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17
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Kawamura S, Matsubara K, Sakai S, Sasaki K, Saito M, Saito K, Yagi M, Norimatsu W, Sasai R, Kusunoki M, Eguchi M, Yin S, Asakura Y, Yui T. Preparation of Stable Silver Nanoparticles Having Wide Red-To-Near-Infrared Extinction. GLOBAL CHALLENGES (HOBOKEN, NJ) 2018; 2:1700105. [PMID: 31565325 PMCID: PMC6607257 DOI: 10.1002/gch2.201700105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/12/2018] [Indexed: 05/11/2023]
Abstract
The synthesis of silver nanoparticles (AgNPs) within the interlayer space of transparent layered titania nanosheet (TNS) films is investigated. A considerable number of silver ions (≈70% against the cation exchange capacity of the TNS) are intercalated in the TNS films using methyl-viologen-containing TNSs as a precursor. The silver ion (Ag+)-containing TNS films are treated with aqueous sodium tetrahydroborate (NaBH4), resulting in a gradual color change to bright blue. Various structural analyses clearly show that crystalline AgNPs are generated within the interlayer space of the TNSs. The NaBH4-treated films show intense and characteristic near-infrared (NIR) extinction spectra up to 1800 nm. The stability of the AgNPs within the TNS against oxygen and moisture is also investigated, and 96% and 82% of the AgNPs remain after standing in air for 1 month and 1 year, respectively. The NIR extinctions of the AgNP-containing TNS films are further extended by employing different preparation procedures, for example, using sintered TNS films as starting materials and irradiating the Ag+-containing TNSs with ultraviolet (UV) light. The obtained AgNP-containing TNS films exhibit photochemical activities in the production of hydrogen from ammonia borane under visible-light irradiation and the decomposition of nitrogen monoxide under UV-light irradiation.
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Affiliation(s)
- Shiori Kawamura
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Kazuki Matsubara
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Sotaro Sakai
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Kazuhisa Sasaki
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Masataro Saito
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Kenji Saito
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Masayuki Yagi
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Wataru Norimatsu
- Department of Materials ChemistryGraduate School of EngineeringNagoya UniversityFuro‐cho, Chikusa‐kuNagoya‐shiAichi‐ken464‐8603Japan
| | - Ryo Sasai
- Department of Physics and Materials ScienceInterdisciplinary Graduate School of Science and EngineeringShimane University1060, Nishi‐kawatsu‐choMatsue690‐8504Japan
| | - Michiko Kusunoki
- Institute of Materials and Systems for SustainabilityNagoya UniversityFuro‐cho, Chikusa‐kuNagoya‐shiAichi‐ken464‐8603Japan
| | - Miharu Eguchi
- Electronic Functional Materials GroupPolymer Materials UnitNational Institute for Materials Science (NIMS)1‐1 NamikiTsukubaIbaraki305‐0044Japan
| | - Shu Yin
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku University2‐1‐1, KatahiraAoba‐kuSendai980‐8577Japan
| | - Yusuke Asakura
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku University2‐1‐1, KatahiraAoba‐kuSendai980‐8577Japan
| | - Tatsuto Yui
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
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Prabhakar C, Promila, Tripathi A, Bhanuprakash K, Jayathirtharao V. Visible absorbing croconium dyes with intramolecular hydrogen bonding: A combined experimental and computational study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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