101
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Sánchez‐Grande A, Urgel JI, Cahlík A, Santos J, Edalatmanesh S, Rodríguez‐Sánchez E, Lauwaet K, Mutombo P, Nachtigallová D, Nieman R, Lischka H, de la Torre B, Miranda R, Gröning O, Martín N, Jelínek P, Écija D. Diradical Organic One-Dimensional Polymers Synthesized on a Metallic Surface. Angew Chem Int Ed Engl 2020; 59:17594-17599. [PMID: 32592432 PMCID: PMC7540677 DOI: 10.1002/anie.202006276] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/08/2020] [Indexed: 11/28/2022]
Abstract
We report on the synthesis and characterization of atomically precise one-dimensional diradical peripentacene polymers on a Au(111) surface. By means of high-resolution scanning probe microscopy complemented by theoretical simulations, we provide evidence of their magnetic properties, which arise from the presence of two unpaired spins at their termini. Additionally, we probe a transition of their magnetic properties related to the length of the polymer. Peripentacene dimers exhibit an antiferromagnetic (S=0) singlet ground state. They are characterized by singlet-triplet spin-flip inelastic excitations with an effective exchange coupling (Jeff ) of 2.5 meV, whereas trimers and longer peripentacene polymers reveal a paramagnetic nature and feature Kondo fingerprints at each terminus due to the unpaired spin. Our work provides access to the precise fabrication of polymers featuring diradical character which are potentially useful in carbon-based optoelectronics and spintronics.
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Affiliation(s)
| | - José I. Urgel
- IMDEA NanoscienceC/ Faraday 9, Campus de Cantoblanco28049MadridSpain
| | - Aleš Cahlík
- Institute of Physics of the Czech Academy of Science16253PrahaCzech Republic
- Regional Centre of Advanced Technologies and MaterialsPalacký University Olomouc77146OlomoucCzech Republic
| | - José Santos
- IMDEA NanoscienceC/ Faraday 9, Campus de Cantoblanco28049MadridSpain
- Departamento de Química OrgánicaFacultad de Ciencias QuímicasUniversidad Complutense de Madrid28040MadridSpain
| | - Shayan Edalatmanesh
- Institute of Physics of the Czech Academy of Science16253PrahaCzech Republic
- Regional Centre of Advanced Technologies and MaterialsPalacký University Olomouc77146OlomoucCzech Republic
| | | | - Koen Lauwaet
- IMDEA NanoscienceC/ Faraday 9, Campus de Cantoblanco28049MadridSpain
| | - Pingo Mutombo
- Institute of Physics of the Czech Academy of Science16253PrahaCzech Republic
| | - Dana Nachtigallová
- Regional Centre of Advanced Technologies and MaterialsPalacký University Olomouc77146OlomoucCzech Republic
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science16000PrahaCzech Republic
| | - Reed Nieman
- Department of Chemistry and BiochemistryTexas Tech UniversityLubbockTX79409USA
| | - Hans Lischka
- Department of Chemistry and BiochemistryTexas Tech UniversityLubbockTX79409USA
- School of Pharmaceutical Sciences and TechnologyTianjin UniversityTianjin300072P. R. China
| | - Bruno de la Torre
- Institute of Physics of the Czech Academy of Science16253PrahaCzech Republic
- Regional Centre of Advanced Technologies and MaterialsPalacký University Olomouc77146OlomoucCzech Republic
| | - Rodolfo Miranda
- IMDEA NanoscienceC/ Faraday 9, Campus de Cantoblanco28049MadridSpain
- Departamento de Física de la Materia CondensadaUniversidad Autónoma de Madrid28049MadridSpain
| | - Oliver Gröning
- EmpaSwiss Federal Laboratories for Materials Science and Technology8600DübendorfSwitzerland
| | - Nazario Martín
- IMDEA NanoscienceC/ Faraday 9, Campus de Cantoblanco28049MadridSpain
- Departamento de Química OrgánicaFacultad de Ciencias QuímicasUniversidad Complutense de Madrid28040MadridSpain
| | - Pavel Jelínek
- Institute of Physics of the Czech Academy of Science16253PrahaCzech Republic
- Regional Centre of Advanced Technologies and MaterialsPalacký University Olomouc77146OlomoucCzech Republic
| | - David Écija
- IMDEA NanoscienceC/ Faraday 9, Campus de Cantoblanco28049MadridSpain
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102
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Sainz R, Del Pozo M, Vilas-Varela M, Castro-Esteban J, Pérez Corral M, Vázquez L, Blanco E, Peña D, Martín-Gago JA, Ellis GJ, Petit-Domínguez MD, Quintana C, Casero E. Chemically synthesized chevron-like graphene nanoribbons for electrochemical sensors development: determination of epinephrine. Sci Rep 2020; 10:14614. [PMID: 32884078 PMCID: PMC7471882 DOI: 10.1038/s41598-020-71554-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/18/2020] [Indexed: 11/09/2022] Open
Abstract
We employ chevron-like graphene nanoribbons (GNRs) synthesized by a solution-based chemical route to develop a novel electrochemical sensor for determination of the neurotransmitter epinephrine (EPI). The sensor surface, a glassy carbon electrode modified with GNRs, is characterized by atomic force microscopy, scanning electron microscopy and Raman spectroscopy, which show that the electrode surface modification comprises of bi-dimensional multilayer-stacked GNRs that retain their molecular structure. The charge transfer process occurring at the electrode interface is evaluated by electrochemical impedance spectroscopy. The sensor is applied to the determination of EPI, employing as an analytical signal the reduction peak corresponding to the epinephrinechrome–leucoepinephrinechrome transition (E = − 0.25 V) instead of the oxidation peak usually employed in the literature (E = + 0.6 V) in order to minimize interferences. The results obtained demonstrate that chevron-like nanoribbons synthesized by solution methods exhibit reliable electrocatalytic activity for EPI determination. Using differential pulse voltammetry, we obtain a linear concentration range from 6.4 × 10–6 to 1.0 × 10–4 M and a detection limit of 2.1 × 10–6 M. The applicability of the sensor was evaluated by determining EPI in pharmaceutical samples with satisfactory results.
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Affiliation(s)
- Raquel Sainz
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Manuel Vilas-Varela
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Jesús Castro-Esteban
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - María Pérez Corral
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Luis Vázquez
- ESISNA group, Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), c/ Sor Juana Inés de la Cruz Nº3, 28049, Madrid, Spain
| | - Elías Blanco
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Diego Peña
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - José A Martín-Gago
- ESISNA group, Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), c/ Sor Juana Inés de la Cruz Nº3, 28049, Madrid, Spain
| | - Gary J Ellis
- Departamento de Física de Polímeros, Elastómeros y Aplicaciones Energéticas, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/ Juan de la Cierva, 3, 28006, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain.
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103
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Sánchez‐Grande A, Urgel JI, Cahlík A, Santos J, Edalatmanesh S, Rodríguez‐Sánchez E, Lauwaet K, Mutombo P, Nachtigallová D, Nieman R, Lischka H, Torre B, Miranda R, Gröning O, Martín N, Jelínek P, Écija D. Diradical Organic One‐Dimensional Polymers Synthesized on a Metallic Surface. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006276] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ana Sánchez‐Grande
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
| | - José I. Urgel
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
| | - Aleš Cahlík
- Institute of Physics of the Czech Academy of Science 16253 Praha Czech Republic
- Regional Centre of Advanced Technologies and Materials Palacký University Olomouc 77146 Olomouc Czech Republic
| | - José Santos
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad Complutense de Madrid 28040 Madrid Spain
| | - Shayan Edalatmanesh
- Institute of Physics of the Czech Academy of Science 16253 Praha Czech Republic
- Regional Centre of Advanced Technologies and Materials Palacký University Olomouc 77146 Olomouc Czech Republic
| | | | - Koen Lauwaet
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
| | - Pingo Mutombo
- Institute of Physics of the Czech Academy of Science 16253 Praha Czech Republic
| | - Dana Nachtigallová
- Regional Centre of Advanced Technologies and Materials Palacký University Olomouc 77146 Olomouc Czech Republic
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science 16000 Praha Czech Republic
| | - Reed Nieman
- Department of Chemistry and Biochemistry Texas Tech University Lubbock TX 79409 USA
| | - Hans Lischka
- Department of Chemistry and Biochemistry Texas Tech University Lubbock TX 79409 USA
- School of Pharmaceutical Sciences and Technology Tianjin University Tianjin 300072 P. R. China
| | - Bruno Torre
- Institute of Physics of the Czech Academy of Science 16253 Praha Czech Republic
- Regional Centre of Advanced Technologies and Materials Palacký University Olomouc 77146 Olomouc Czech Republic
| | - Rodolfo Miranda
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
- Departamento de Física de la Materia Condensada Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Oliver Gröning
- Empa Swiss Federal Laboratories for Materials Science and Technology 8600 Dübendorf Switzerland
| | - Nazario Martín
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
- Departamento de Química Orgánica Facultad de Ciencias Químicas Universidad Complutense de Madrid 28040 Madrid Spain
| | - Pavel Jelínek
- Institute of Physics of the Czech Academy of Science 16253 Praha Czech Republic
- Regional Centre of Advanced Technologies and Materials Palacký University Olomouc 77146 Olomouc Czech Republic
| | - David Écija
- IMDEA Nanoscience C/ Faraday 9, Campus de Cantoblanco 28049 Madrid Spain
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104
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Dual Amplified Spontaneous Emission and Lasing from Nanographene Films. NANOMATERIALS 2020; 10:nano10081525. [PMID: 32759768 PMCID: PMC7466616 DOI: 10.3390/nano10081525] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/28/2020] [Accepted: 07/31/2020] [Indexed: 01/06/2023]
Abstract
Chemically synthesized zigzag-edged nanographenes (NG) have recently demonstrated great success as the active laser units in solution-processed organic distributed feedback (DFB) lasers. Here, we report the first observation of dual amplified spontaneous emission (ASE) from a large-size NG derivative (with 12 benzenoid rings) dispersed in a polystyrene film. ASE is observed simultaneously at the 685 and 739 nm wavelengths, which correspond to different transitions of the photoluminescence spectrum. Ultrafast pump-probe spectroscopy has been used to ascertain the underlying photophysical processes taking place in the films. DFB lasers, based on these materials and top-layer nanostructured polymeric resonators (i.e., one or two-dimensional surface relief gratings), have been fabricated and characterized. Lasers emitting close to either one of the two possible ASE wavelengths, or simultaneously at both of them, have been prepared by proper selection of the resonator parameters.
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105
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Dobashi H, Catti L, Tanaka Y, Akita M, Yoshizawa M. N‐Doping of Polyaromatic Capsules: Small Cavity Modification Leads to Large Change in Host–Guest Interactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004168] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hiroki Dobashi
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Lorenzo Catti
- WPI Nano Life Science Institute Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Yuya Tanaka
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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106
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Lohr TG, Urgel JI, Eimre K, Liu J, Di Giovannantonio M, Mishra S, Berger R, Ruffieux P, Pignedoli CA, Fasel R, Feng X. On-Surface Synthesis of Non-Benzenoid Nanographenes by Oxidative Ring-Closure and Ring-Rearrangement Reactions. J Am Chem Soc 2020; 142:13565-13572. [DOI: 10.1021/jacs.0c05668] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thorsten G. Lohr
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany
| | - José I. Urgel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
- IMDEA Nanoscience, C/Faraday 9, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Kristjan Eimre
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Marco Di Giovannantonio
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Shantanu Mishra
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Reinhard Berger
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany
| | - Pascal Ruffieux
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Carlo A. Pignedoli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Roman Fasel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Xinliang Feng
- Center for Advancing Electronics and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany
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107
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Ito H, Matsuoka W, Yano Y, Shibata M, Itami K. Annulative π-Extension (APEX) Reactions for Precise Synthesis of Polycyclic Aromatic Compounds. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hideto Ito
- Graduate School of Science, Nagoya University
- JST-ERATO Itami Molecular Nanocarbon Project
- Institute of Transformative Bio-Molecules, Nagoya University
| | | | | | | | - Kenichiro Itami
- Graduate School of Science, Nagoya University
- JST-ERATO Itami Molecular Nanocarbon Project
- Institute of Transformative Bio-Molecules, Nagoya University
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108
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Zreid MS, Tabasi ZA, Ma X, Wang T, Almatarneh MH, Zhao Y. Highly Twisted Aryl-Anthraquinodimethanes: Synthesis, Characterization, and Fluorescence Sensing of TNT. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Monther S. Zreid
- Department of Chemistry; Memorial University of Newfoundland; St. John's NL A1B 3X7 Canada
| | - Zahra A. Tabasi
- Department of Chemistry; Memorial University of Newfoundland; St. John's NL A1B 3X7 Canada
| | - Xiaoyu Ma
- Department of Organic Chemistry; College of Science; Beijing University of Chemical Technology; 100029 Beijing PR China
| | - Tao Wang
- Department of Organic Chemistry; College of Science; Beijing University of Chemical Technology; 100029 Beijing PR China
| | - Mansour H. Almatarneh
- Department of Chemistry; Memorial University of Newfoundland; St. John's NL A1B 3X7 Canada
- Department of Chemistry; University of Jordan; 11942 Amman Jordan
| | - Yuming Zhao
- Department of Chemistry; Memorial University of Newfoundland; St. John's NL A1B 3X7 Canada
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109
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Ahmad MS, Nishina Y. Graphene-based carbocatalysts for carbon-carbon bond formation. NANOSCALE 2020; 12:12210-12227. [PMID: 32510079 DOI: 10.1039/d0nr02984j] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Organic transformations are usually catalyzed by metal-based catalysts. In contrast, metal-free catalysts have attracted considerable attention from the viewpoint of sustainability and safety. Among the studies in metal-free catalysis, graphene-based materials have been introduced in the reactions that are usually catalyzed by transition metal catalysts. This review covers the literature (up to the beginning of April 2020) on the use of graphene and its derivatives as carbocatalysts for C-C bond-forming reactions, which are one of the fundamental reactions in organic syntheses. Besides, mechanistic studies are included for the rational understanding of the catalysis. Graphene has significant potential in the field of metal-free catalysis because of the fine-tunable potential of the structure, high stability and durability, and no metal contamination, making it a next-generation candidate material in catalysis.
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Affiliation(s)
- Muhammad Sohail Ahmad
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, Japan700-8530.
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110
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Scholz AS, Massoth JG, Bursch M, Mewes JM, Hetzke T, Wolf B, Bolte M, Lerner HW, Grimme S, Wagner M. BNB-Doped Phenalenyls: Modular Synthesis, Optoelectronic Properties, and One-Electron Reduction. J Am Chem Soc 2020; 142:11072-11083. [PMID: 32464052 DOI: 10.1021/jacs.0c03118] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A highly modular synthesis of BNB- and BOB-doped phenalenyls is presented. Treatment of the 1,8-naphthalenediyl-bridged boronic acid anhydride 1 with LiAlH4/Me3SiCl afforded the corresponding 1,8-naphthalenediyl-supported diborane(6) 2, which served as the starting material for all subsequent transformations. Upon addition of MesMgBr/Me3SiCl, 2 was readily converted to the tetraorganyl diborane(6) 5. The further heteroatoms were finally introduced through the reaction of 2 with (Me3Si)2NR' or 5 with H2NR' or H2O (R' = H, Me, p-Tol). A helically twisted, fully BNB-embedded PAH 11 was prepared by combining 2 with a dibrominated m-terphenylamine, followed by a Grignard-mediated double ring-closure reaction. All compounds devoid of B-H bonds show favorable optoelectronic properties, such as luminescence and reversible reduction behavior. In the case of the BNB-phenalenyl 7 (BMes, NMe), the radical-anion salt K[7•] was generated through chemical reduction with K metal and characterized by EPR spectroscopy. K[7•] is not long-term stable in a THF/c-hexane solution, but abstracts an H atom with formation of the diamagnetic BNB-doped 1H-phenalene K[7H].
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Affiliation(s)
- Alexander S Scholz
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Julian G Massoth
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Markus Bursch
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Jan-M Mewes
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Thilo Hetzke
- Institut für Physikalische und Theoretische Chemie, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Bernd Wolf
- Physikalisches Institut, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany
| | - Michael Bolte
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Hans-Wolfram Lerner
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Matthias Wagner
- Institut für Anorganische und Analytische Chemie, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 7, 60438 Frankfurt am Main, Germany
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111
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Ajayakumar MR, Fu Y, Liu F, Komber H, Tkachova V, Xu C, Zhou S, Popov AA, Liu J, Feng X. Tailoring Magnetic Features in Zigzag-Edged Nanographenes by Controlled Diels-Alder Reactions. Chemistry 2020; 26:7497-7503. [PMID: 32298000 PMCID: PMC9328941 DOI: 10.1002/chem.202001130] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/11/2020] [Indexed: 01/19/2023]
Abstract
Nanographenes (NGs) with tunable electronic and magnetic properties have attracted enormous attention in the realm of carbon-based nanoelectronics. In particular, NGs with biradical character at the ground state are promising building units for molecular spintronics. However, most of the biradicaloids are susceptible to oxidation under ambient conditions and photolytic degradation, which hamper their further applications. Herein, we demonstrated the feasibility of tuning the magnetic properties of zigzag-edged NGs in order to enhance their stability via the controlled Diels-Alder reactions of peri-tetracene (4-PA). The unstable 4-PA (y0 =0.72; half-life, t1/2 =3 h) was transformed into the unprecedented benzo-peri-tetracenes (BPTs) by a one-side Diels-Alder reaction, which featured a biradical character at the ground state (y0 =0.60) and exhibited remarkable stability under ambient conditions for several months. In addition, the fully zigzag-edged circumanthracenes (CAs) were achieved by two-fold or stepwise Diels-Alder reactions of 4-PA, in which the magnetic properties could be controlled by employing the corresponding dienophiles. Our work reported herein opens avenues for the synthesis of novel zigzag-edged NGs with tailor-made magnetic properties.
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Affiliation(s)
- M. R. Ajayakumar
- Center for Advancing Electronics Dresden (cfaed) &, Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
| | - Yubin Fu
- Center for Advancing Electronics Dresden (cfaed) &, Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
| | - Fupin Liu
- Leibniz Institute for Solid State and Materials ResearchHelmholtzstraße 2001069DresdenGermany
| | - Hartmut Komber
- Leibniz-Institut für Polymerforschung Dresden e. V.Hohe Straße 601069DresdenGermany
| | - Valeriya Tkachova
- Center for Advancing Electronics Dresden (cfaed) &, Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
| | - Chi Xu
- Helmholtz-Zentrum Dresden-RossendorfInstitute of Ion Beam Physics and Materials ResearchBautzner Landstrasse 400Dresden01328Germany
| | - Shengqiang Zhou
- Helmholtz-Zentrum Dresden-RossendorfInstitute of Ion Beam Physics and Materials ResearchBautzner Landstrasse 400Dresden01328Germany
| | - Alexey A. Popov
- Leibniz Institute for Solid State and Materials ResearchHelmholtzstraße 2001069DresdenGermany
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic ChemistryThe University of Hong KongPokfulam Road999077Hong KongP. R. China
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed) &, Faculty of Chemistry and Food ChemistryTechnische Universität DresdenMommsenstrasse 401062DresdenGermany
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112
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Pati PB, Jin E, Kim Y, Kim Y, Mun J, Kim SJ, Kang SJ, Choe W, Lee G, Shin H, Park YS. Unveiling 79‐Year‐Old Ixene and Its BN‐Doped Derivative. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Palas Baran Pati
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Eunji Jin
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Yohan Kim
- Department of Materials Science and Engineering Low Dimensional Carbon Materials Center Center for Multidimensional Carbon Materials Institute for Basic Science (IBS) Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Yongchul Kim
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Jinhong Mun
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - So Jung Kim
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Seok Ju Kang
- Department of Energy Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
- Center for Wave Energy Materials Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Wonyoung Choe
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Geunsik Lee
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
- Center for Wave Energy Materials Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Hyung‐Joon Shin
- Department of Materials Science and Engineering Low Dimensional Carbon Materials Center Center for Multidimensional Carbon Materials Institute for Basic Science (IBS) Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Young S. Park
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
- Center for Wave Energy Materials Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
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113
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Pati PB, Jin E, Kim Y, Kim Y, Mun J, Kim SJ, Kang SJ, Choe W, Lee G, Shin H, Park YS. Unveiling 79‐Year‐Old Ixene and Its BN‐Doped Derivative. Angew Chem Int Ed Engl 2020; 59:14891-14895. [DOI: 10.1002/anie.202004049] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/07/2020] [Indexed: 12/27/2022]
Affiliation(s)
- Palas Baran Pati
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Eunji Jin
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Yohan Kim
- Department of Materials Science and Engineering Low Dimensional Carbon Materials Center Center for Multidimensional Carbon Materials Institute for Basic Science (IBS) Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Yongchul Kim
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Jinhong Mun
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - So Jung Kim
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Seok Ju Kang
- Department of Energy Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
- Center for Wave Energy Materials Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Wonyoung Choe
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Geunsik Lee
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
- Center for Wave Energy Materials Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Hyung‐Joon Shin
- Department of Materials Science and Engineering Low Dimensional Carbon Materials Center Center for Multidimensional Carbon Materials Institute for Basic Science (IBS) Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Young S. Park
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
- Center for Wave Energy Materials Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
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114
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Đorđević L, Milano D, Demitri N, Bonifazi D. O-Annulation to Polycyclic Aromatic Hydrocarbons: A Tale of Optoelectronic Properties from Five- to Seven-Membered Rings. Org Lett 2020; 22:4283-4288. [PMID: 32429668 DOI: 10.1021/acs.orglett.0c01331] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We take advantage of the Pummerer oxidative annulation reaction to extend PAHs through the formation of an intramolecular C-O bond with a suitable phenol substituent. Depending on the peripheral topology of the PAH precursor (e.g., pyrene, boron-dipyrromethene, or perylene diimide) five-, six-, and seven-membered O-containing rings could be obtained. The effect of the O-annulations on the optoelectronic properties were studied by various methods with the pyrano-annulated pyrene and BODIPY derivatives depicting quantitative emission quantum yields.
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Affiliation(s)
- Luka Đorđević
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom.,Department of Chemical and Pharmaceutical Sciences, Trieste; University of Trieste, via Licio Giorgieri 1, Trieste 34127, Italy
| | - Domenico Milano
- Department of Chemical and Pharmaceutical Sciences, Trieste; University of Trieste, via Licio Giorgieri 1, Trieste 34127, Italy
| | - Nicola Demitri
- Elettra - Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Davide Bonifazi
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom.,Institute of Organic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Strasse 38 1090 Vienna, Austria
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115
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Dobashi H, Catti L, Tanaka Y, Akita M, Yoshizawa M. N-Doping of Polyaromatic Capsules: Small Cavity Modification Leads to Large Change in Host-Guest Interactions. Angew Chem Int Ed Engl 2020; 59:11881-11885. [PMID: 32291946 DOI: 10.1002/anie.202004168] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/02/2020] [Indexed: 12/16/2022]
Abstract
To gain insight into the host functions of a nanocavity encircled by both polyaromatic panels and heteroatoms, nitrogen-doped polyaromatic capsules were successfully synthesized from metal ions and pyridine-embedded, bent anthracene-based ligands. The new capsules display unique host-guest interactions in the isolated cavities, which are distinct from those of the undoped analogues. Besides the inclusion of Ag+ ions, the large absorption change of fullerene C60 and altered emission of a BODIPY dimer are observed upon encapsulation by the present hosts. Moreover, the N-doped capsule exhibits specific binding ability toward progesterone and methyltestosterone, known as a natural female and synthetic male hormone, respectively, in water.
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Affiliation(s)
- Hiroki Dobashi
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Lorenzo Catti
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Yuya Tanaka
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
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116
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Belser A, Greulich K, Grüninger P, Bettinger HF, Peisert H, Chassé T. Visualization of the Borazine Core of B 3N 3-Doped Nanographene by STM. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19218-19225. [PMID: 32223213 DOI: 10.1021/acsami.0c02324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Electronic interface properties and the initial growth of hexa-peri-hexabenzocoronene with a borazine core (BN-HBC) on Au(111) have been studied by using X-ray photoelectron spectroscopy (XPS), low-energy electron diffraction (LEED), and scanning tunneling microscopy (STM). A weak, but non-negligible, interaction between BN-HBC and Au(111) was found at the interface. Both hexa-peri-hexabenzocoronene (HBC) and BN-HBC molecules form well-defined monolayers. The different contrast in STM images of HBC and BN-HBC at different tunneling voltages with submolecular resolution can be ascribed to differences in the local density of states (LDOS). At positive and negative tunneling voltages, STM images reproduce the distribution of the highest occupied and lowest unoccupied molecular orbitals (HOMO and LUMO) as determined by density functional theory (DFT) calculations very well.
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Affiliation(s)
- Axel Belser
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Katharina Greulich
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Peter Grüninger
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Holger F Bettinger
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
- Center for Light-Matter Interaction, Sensors & Analytics (LISA+) at the University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Heiko Peisert
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Thomas Chassé
- Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
- Center for Light-Matter Interaction, Sensors & Analytics (LISA+) at the University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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117
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Xu X, Müllen K, Narita A. Syntheses and Characterizations of Functional Polycyclic Aromatic Hydrocarbons and Graphene Nanoribbons. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20190368] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiushang Xu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami, Okinawa 904-0495, Japan
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- Institute of Physical Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami, Okinawa 904-0495, Japan
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118
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Gonzalez-Rodriguez E, Abdo MA, Dos Passos Gomes G, Ayad S, White FD, Tsvetkov NP, Hanson K, Alabugin IV. Twofold π-Extension of Polyarenes via Double and Triple Radical Alkyne peri-Annulations: Radical Cascades Converging on the Same Aromatic Core. J Am Chem Soc 2020; 142:8352-8366. [PMID: 32249571 DOI: 10.1021/jacs.0c01856] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A versatile synthetic route to distannyl-substituted polyarenes was developed via double radical peri-annulations. The cyclization precursors were equipped with propargylic OMe traceless directing groups (TDGs) for regioselective Sn-radical attack at the triple bonds. The two peri-annulations converge at a variety of polycyclic cores to yield expanded difunctionalized polycyclic aromatic hydrocarbons (PAHs). This approach can be extended to triple peri-annulations, where annulations are coupled with a radical cascade that connects two preexisting aromatic cores via a formal C-H activation step. The installed Bu3Sn groups serve as chemical handles for further functionalization via direct cross-coupling, iodination, or protodestannylation and increase solubility of the products in organic solvents. Photophysical studies reveal that the Bu3Sn-substituted PAHs are moderately fluorescent, and their protodestannylation results in an up to 10-fold fluorescence quantum yield enhancement. DFT calculations identified the most likely possible mechanism of this complex chemical transformation involving two independent peri-cyclizations at the central core.
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Affiliation(s)
- Edgar Gonzalez-Rodriguez
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Miguel A Abdo
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Gabriel Dos Passos Gomes
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Suliman Ayad
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Frankie D White
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Nikolay P Tsvetkov
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Kenneth Hanson
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Igor V Alabugin
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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119
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Fu Y, Yang H, Gao Y, Huang L, Berger R, Liu J, Lu H, Cheng Z, Du S, Gao H, Feng X. On‐Surface Synthesis of NBN‐Doped Zigzag‐Edged Graphene Nanoribbons. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000488] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yubin Fu
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Huan Yang
- Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 China
| | - Yixuan Gao
- Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 China
| | - Li Huang
- Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 China
| | - Reinhard Berger
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
| | - Hongliang Lu
- Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 China
| | - Zhihai Cheng
- Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-nano Devices Renmin University of China Beijing 100872 China
| | - Shixuan Du
- Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 China
| | - Hong‐Jun Gao
- Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100190 China
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
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120
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Fu Y, Yang H, Gao Y, Huang L, Berger R, Liu J, Lu H, Cheng Z, Du S, Gao HJ, Feng X. On-Surface Synthesis of NBN-Doped Zigzag-Edged Graphene Nanoribbons. Angew Chem Int Ed Engl 2020; 59:8873-8879. [PMID: 32134547 PMCID: PMC7318338 DOI: 10.1002/anie.202000488] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/26/2020] [Indexed: 12/24/2022]
Abstract
We report the first bottom‐up synthesis of NBN‐doped zigzag‐edged GNRs (NBN‐ZGNR1 and NBN‐ZGNR2) through surface‐assisted polymerization and cyclodehydrogenation based on two U‐shaped molecular precursors with an NBN unit preinstalled at the zigzag edge. The resultant zigzag‐edge topologies of GNRs are elucidated by high‐resolution scanning tunneling microscopy (STM) in combination with noncontact atomic force microscopy (nc‐AFM). Scanning tunneling spectroscopy (STS) measurements and density functional theory (DFT) calculations reveal that the electronic structures of NBN‐ZGNR1 and NBN‐ZGNR2 are significantly different from those of their corresponding pristine fully‐carbon‐based ZGNRs. Additionally, DFT calculations predict that the electronic structures of NBN‐ZGNRs can be further tailored to be gapless and metallic through one‐electron oxidation of each NBN unit into the corresponding radical cations. This work reported herein provides a feasible strategy for the synthesis of GNRs with stable zigzag edges yet tunable electronic properties.
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Affiliation(s)
- Yubin Fu
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Huan Yang
- Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yixuan Gao
- Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Li Huang
- Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Reinhard Berger
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Hongliang Lu
- Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zhihai Cheng
- Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing, 100872, China
| | - Shixuan Du
- Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Hong-Jun Gao
- Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
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121
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Riss A, Richter M, Paz AP, Wang XY, Raju R, He Y, Ducke J, Corral E, Wuttke M, Seufert K, Garnica M, Rubio A, V Barth J, Narita A, Müllen K, Berger R, Feng X, Palma CA, Auwärter W. Polycyclic aromatic chains on metals and insulating layers by repetitive [3+2] cycloadditions. Nat Commun 2020; 11:1490. [PMID: 32198456 PMCID: PMC7083871 DOI: 10.1038/s41467-020-15210-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 02/24/2020] [Indexed: 12/03/2022] Open
Abstract
The vast potential of organic materials for electronic, optoelectronic and spintronic devices entails substantial interest in the fabrication of π-conjugated systems with tailored functionality directly at insulating interfaces. On-surface fabrication of such materials on non-metal surfaces remains to be demonstrated with high yield and selectivity. Here we present the synthesis of polyaromatic chains on metallic substrates, insulating layers, and in the solid state. Scanning probe microscopy shows the formation of azaullazine repeating units on Au(111), Ag(111), and h-BN/Cu(111), stemming from intermolecular homo-coupling via cycloaddition reactions of CN-substituted polycyclic aromatic azomethine ylide (PAMY) intermediates followed by subsequent dehydrogenation. Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry demonstrates that the reaction also takes place in the solid state in the absence of any catalyst. Such intermolecular cycloaddition reactions are promising methods for direct synthesis of regioregular polyaromatic polymers on arbitrary insulating surfaces.
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Affiliation(s)
- Alexander Riss
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany.
| | - Marcus Richter
- Department for Molecular Functional Materials, Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Dresden University of Technology, Mommsenstr. 4, 01062, Dresden, Germany
| | - Alejandro Pérez Paz
- School of Physical Sciences and Nanotechnology, Yachay Tech University, 100119, Urcuquí, Ecuador
- Chemistry Department, College of Science, United Arab Emirates University (UAEU), P.O. Box 15551, Al Ain, United Arab Emirates
- Nano-Bio Spectroscopy Group and ETSF, Universidad del País Vasco, 20018, San Sebastián, Spain
| | - Xiao-Ye Wang
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Rajesh Raju
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Yuanqin He
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Jacob Ducke
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Eduardo Corral
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Michael Wuttke
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Knud Seufert
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Manuela Garnica
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia), 28049, Madrid, Spain
| | - Angel Rubio
- Nano-Bio Spectroscopy Group and ETSF, Universidad del País Vasco, 20018, San Sebastián, Spain
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761, Hamburg, Germany
- Center for Free-Electron Laser Science and Department of Physics, University of Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Johannes V Barth
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami, Okinawa, 904-0495, Japan
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
- Institute of Physical Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Reinhard Berger
- Department for Molecular Functional Materials, Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Dresden University of Technology, Mommsenstr. 4, 01062, Dresden, Germany
| | - Xinliang Feng
- Department for Molecular Functional Materials, Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Dresden University of Technology, Mommsenstr. 4, 01062, Dresden, Germany
| | - Carlos-Andres Palma
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany.
- Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China.
| | - Willi Auwärter
- Physics Department E20, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
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122
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Uryu M, Hiraga T, Koga Y, Saito Y, Murakami K, Itami K. Synthesis of Polybenzoacenes: Annulative Dimerization of Phenylene Triflate by Twofold C−H Activation. Angew Chem Int Ed Engl 2020; 59:6551-6554. [DOI: 10.1002/anie.202001211] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Mizuho Uryu
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Taito Hiraga
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Yoshito Koga
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Yutaro Saito
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Kei Murakami
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM)Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Kenichiro Itami
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM)Nagoya University, Chikusa Nagoya 464-8602 Japan
- JST-ERATOItami Molecular Nanocarbon ProjectNagoya University Chikusa Nagoya 464-8602 Japan
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123
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Uryu M, Hiraga T, Koga Y, Saito Y, Murakami K, Itami K. Synthesis of Polybenzoacenes: Annulative Dimerization of Phenylene Triflate by Twofold C−H Activation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001211] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mizuho Uryu
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Taito Hiraga
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Yoshito Koga
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Yutaro Saito
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
| | - Kei Murakami
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM)Nagoya University, Chikusa Nagoya 464-8602 Japan
| | - Kenichiro Itami
- Graduate School of ScienceNagoya University Chikusa Nagoya 464-8602 Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM)Nagoya University, Chikusa Nagoya 464-8602 Japan
- JST-ERATOItami Molecular Nanocarbon ProjectNagoya University Chikusa Nagoya 464-8602 Japan
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124
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Ziatdinov AM, Saenko NS, Skrylnik PG. Graphene Oxide and Its Thermally Reduced Nanostructured Derivatives: Synthesis and Comprehensive Study of Properties. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620010210] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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125
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Zhou D, Meng Q, Si N, Zhou X, Zhai S, Tang Q, Ji Q, Zhou M, Niu T, Fuchs H. Epitaxial Growth of Flat, Metallic Monolayer Phosphorene on Metal Oxide. ACS NANO 2020; 14:2385-2394. [PMID: 32031783 DOI: 10.1021/acsnano.9b09588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In recent years, two-dimensional (2D) group VA elemental materials have attracted considerable interest from physics/chemistry and materials science communities, with particular attention paid to honeycomb blue phosphorene. To date, phosphorene is limited to its α-phase and small sizes because it can only be produced by exfoliating black phosphorus crystals. Here, we report the direct synthesis of high-quality phosphorene on a nonmetallic copper oxide substrate by molecular beam epitaxy. By combining scanning tunneling microscopy/spectroscopy, X-ray photoelectron spectroscopy, and first-principles calculations, we demonstrate the growth intermediates and electronic structures of phosphorene on Cu3O2/Cu(111). Surprisingly, the grown phosphorene has a flat honeycomb lattice, similar to graphene, which exhibits a metallic nature. We reveal that the growth mechanism and morphology of phosphorene are strongly correlated with the surface structures of prepared copper oxide, and the resulting phosphorene can be stabilized after high-temperature annealing above 600 K even in oxygen gas. The high stability is closely related to the irregular Moiré pattern and structural corrugations of phosphorene on Cu3O2/Cu(111) that efficiently relieve the surface strain. These results shed light on future fabrication of large-scale, versatile 2D structures for interconnect and device integration.
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Affiliation(s)
- Dechun Zhou
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering , Nanjing University of Science & Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Qingling Meng
- School of Physics , Beihang University , No. 37 Xueyuan Road , Haidian District, Beijing 100191 , China
| | - Nan Si
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering , Nanjing University of Science & Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Xiong Zhou
- SynCat@Beijing , Synfuels China Technology Co. Ltd. , Leyuan South Street II , No. 1 Huairou District, Beijing 101407 , China
| | - Shuwei Zhai
- School of Physics , Beihang University , No. 37 Xueyuan Road , Haidian District, Beijing 100191 , China
| | - Qin Tang
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering , Nanjing University of Science & Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Qingmin Ji
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering , Nanjing University of Science & Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Miao Zhou
- School of Physics , Beihang University , No. 37 Xueyuan Road , Haidian District, Beijing 100191 , China
| | - Tianchao Niu
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering , Nanjing University of Science & Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
| | - Harald Fuchs
- Herbert Gleiter Institute of Nanoscience, School of Material Science and Engineering , Nanjing University of Science & Technology , No. 200 Xiaolingwei , Nanjing 210094 , China
- Physikalisches Institut, Westfälische Wilhelms-Universität Münster , Wilhelm-Klemm-Strasse 10 , Münster 48149 , Germany
- Center for Nanotechnology (CeNTech) , Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11 , Münster 48149 , Germany
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126
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Abstract
Hexa-peri-hexabenzocoronenes (HBCs), substituted by two different chromophores in an ortho arrangement, were synthesized for the first time and investigated towards their photophysical properties. Rylene-diimide dyes, in particular naphthalene-diimides (NDIs) and perylene-diimides (PDIs), were attached to the HBC as the first, and porphyrins as the second chromophore. Therefore, porphyrin-NDI-HPB as well as porphyrin-PDI-HPB precursors were accessed and converted into the respective HBC derivatives applying oxidative Scholl conditions. UV-vis absorption and fluorescence emission spectroscopy showed interesting photophysical behavior such as energy transfer processes. Particularly, the porphyrin-PDI-HBC displays pronounced absorption features between 330–650 nm, which cover a wide range of the visible spectrum.
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Affiliation(s)
- Max M. Martin
- Department Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Carolin Dusold
- Department Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Andreas Hirsch
- Department Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Norbert Jux
- Department Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
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127
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A leaf vein-like hierarchical silver grids transparent electrode towards high-performance flexible electrochromic smart windows. Sci Bull (Beijing) 2020; 65:225-232. [PMID: 36659176 DOI: 10.1016/j.scib.2019.11.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/27/2019] [Accepted: 11/20/2019] [Indexed: 01/21/2023]
Abstract
As essential components of numerous flexible and wearable optoelectronic devices, the flexible transparent conducting electrodes (TCEs) with sufficient optical transmittance and electric conductivity become more and more important. In this work, we fabricated a large-area flexible TCE based on leaf vein-like hierarchical metal grids (HMG) comprising of mesoscale "trunk" and microscale "branches". The self-formed branched grids made the conducting paths distributing uniformly while the laser-etching trunk grids enabled to transport the collected electrons across long-distance. The Ag HMG exhibited high optical transmittance (~81%) with low sheet resistance (1.36 Ω sq-1), which could be simply optimized through adjusting the grids' widths, spaces, and the sizes of the TiO2 colloidal crackle patterns. In addition, on the basis of such advanced HMG electrode, flexible electrochromic devices (ECDs) with remarkable cyclic performance were fabricated. The HMG with high transparency, conductivity, and flexibility provides a promising TCE for the next-generation flexible and wearable optoelectronic devices.
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128
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Takano H, Shiozawa N, Imai Y, Kanyiva KS, Shibata T. Catalytic Enantioselective Synthesis of Axially Chiral Polycyclic Aromatic Hydrocarbons (PAHs) via Regioselective C–C Bond Activation of Biphenylenes. J Am Chem Soc 2020; 142:4714-4722. [DOI: 10.1021/jacs.9b12205] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hideaki Takano
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Natsumi Shiozawa
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577−8502, Japan
| | - Kyalo Stephen Kanyiva
- Global Center of Science and Engineering, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Takanori Shibata
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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129
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Graphitic nanosheets via two-dimensional polymerization enhancing organic all-optically controlled photorefractive performance. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-1998-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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130
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131
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Xu LP, Haines BE, Ajitha MJ, Murakami K, Itami K, Musaev DG. Roles of Base in the Pd-Catalyzed Annulative Chlorophenylene Dimerization. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05328] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Li-Ping Xu
- Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, China
| | - Brandon E. Haines
- Department of Chemistry, Westmont College, Santa Barbara, California 93108, United States
| | - Manjaly J. Ajitha
- Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM), Graduate School of Science, and JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM), Graduate School of Science, and JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Djamaladdin G. Musaev
- Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
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132
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Ðorđević L, Valentini C, Demitri N, Mézière C, Allain M, Sallé M, Folli A, Murphy D, Mañas‐Valero S, Coronado E, Bonifazi D. O‐Doped Nanographenes: A Pyrano/Pyrylium Route Towards Semiconducting Cationic Mixed‐Valence Complexes. Angew Chem Int Ed Engl 2020; 59:4106-4114. [DOI: 10.1002/anie.201914025] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/26/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Luka Ðorđević
- School of Chemistry Cardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Cataldo Valentini
- School of Chemistry Cardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Nicola Demitri
- Elettra—Sincrotrone Trieste S.S. 14 Km 163.5 in Area Science Park 34149 Basovizza, Trieste Italy
| | - Cécile Mézière
- MOLTECH-Anjou—UMR CNRS 6200, UNIV Angers, SFR Matrix 2 Boulevard Lavoisier 49045 Angers Cedex France
| | - Magali Allain
- MOLTECH-Anjou—UMR CNRS 6200, UNIV Angers, SFR Matrix 2 Boulevard Lavoisier 49045 Angers Cedex France
| | - Marc Sallé
- MOLTECH-Anjou—UMR CNRS 6200, UNIV Angers, SFR Matrix 2 Boulevard Lavoisier 49045 Angers Cedex France
| | - Andrea Folli
- School of Chemistry Cardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Damien Murphy
- School of Chemistry Cardiff University Main Building, Park Place Cardiff CF10 3AT UK
| | - Samuel Mañas‐Valero
- Instituto de Ciencia Molecular Universitat de València Catedrático José Beltrán 2 46980 Paterna Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular Universitat de València Catedrático José Beltrán 2 46980 Paterna Spain
| | - Davide Bonifazi
- School of Chemistry Cardiff University Main Building, Park Place Cardiff CF10 3AT UK
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133
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O‐Doped Nanographenes: A Pyrano/Pyrylium Route Towards Semiconducting Cationic Mixed‐Valence Complexes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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134
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Sun Y, Wang X, Shen G, Yang T, Yang Y, Li J, Yang M, Sun H, Wei J. A 6π Azaelectrocyclization Strategy towards the 1,5,9‐Triazacoronenes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901433] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yi‐Xun Sun
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
| | - Xiao‐Gang Wang
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
| | - Guo‐Dong Shen
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
| | - Tian Yang
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
| | - Yi‐Hui Yang
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
| | - Jing Li
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
| | - Ming‐Yu Yang
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
| | - Hua‐Ming Sun
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
| | - Jun‐Fa Wei
- School of Chemistry and Materials Science, Key Laboratory for Macromolecular Science of Shaanxi ProvinceShaanxi Normal University Xi'an 710062 People's Republic of China
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135
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Yano Y, Wang F, Mitoma N, Miyauchi Y, Ito H, Itami K. Step-Growth Annulative π-Extension Polymerization for Synthesis of Cove-Type Graphene Nanoribbons. J Am Chem Soc 2020; 142:1686-1691. [DOI: 10.1021/jacs.9b11328] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuuta Yano
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Feijiu Wang
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Nobuhiko Mitoma
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Yuhei Miyauchi
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hideto Ito
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya 464-8602, Japan
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136
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Hosokawa T, Asada T, Kamikawa K. Theoretical Examination of the Plausible Reaction Process for Stereoselective Synthesis of Hexapole Helicene via a Palladium-Catalyzed [2 + 2 + 2] Cyclotrimerization of [5]Helicenyl Aryne. J Phys Chem A 2020; 124:652-661. [DOI: 10.1021/acs.jpca.9b09533] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tomoka Hosokawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 599-8531, Japan
| | - Toshio Asada
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 599-8531, Japan
- The Research Institute for Molecular Electronic Devices (RIMED), Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai 599-8531, Japan
| | - Ken Kamikawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai 599-8531, Japan
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137
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Singh V, Zoric MR, Hargenrader GN, Valentine AJS, Zivojinovic O, Milic DR, Li X, Glusac KD. Exciton Coherence Length and Dynamics in Graphene Quantum Dot Assemblies. J Phys Chem Lett 2020; 11:210-216. [PMID: 31842548 DOI: 10.1021/acs.jpclett.9b03384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Exciton size and dynamics were studied in assemblies of two well-defined graphene quantum dots of varying size: hexabenzocoronene (HBC), where the aromatic core consists of 42 C atoms, and carbon quantum dot (CQD) with 78 C atoms. The synthesis of HBC and CQD were achieved using bottom-up chemical methods, while their assembly was studied using steady-state UV/vis spectroscopy, X-ray scattering, and electron microscopy. While HBC forms long ordered fibers, CQD was found not to assemble well. The exciton size and dynamics were studied using time-resolved laser spectroscopy. At early times (∼100 fs), the exciton was found to delocalize over ∼1-2 molecular units in both assemblies, which reflects the confined nature of excitons in carbon-based materials and is consistent with the calculated value of ∼2 molecular units. Exciton-exciton annihilation measurements provided the exciton diffusion lengths of 16 and 3 nm for HBC and CQD, respectively.
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Affiliation(s)
- Varun Singh
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 Cass Avenue , Lemont , Illinois 60439 , United States
| | - Marija R Zoric
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 Cass Avenue , Lemont , Illinois 60439 , United States
| | - George N Hargenrader
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 Cass Avenue , Lemont , Illinois 60439 , United States
| | - Andrew J S Valentine
- Department of Chemistry , University of Washington , Seattle , Washington 98195-1700 , United States
| | - Olivera Zivojinovic
- Laboratory of Organic Chemistry , ETH Zurich , Vladimir-Prelog-Weg 3 , 8093 Zurich , Switzerland
- University of Belgrade-Faculty of Chemistry , Studentski trg 12-16 , P.O. Box 51, 11158 Belgrade , Serbia
| | - Dragana R Milic
- University of Belgrade-Faculty of Chemistry , Studentski trg 12-16 , P.O. Box 51, 11158 Belgrade , Serbia
| | - Xiaosong Li
- Department of Chemistry , University of Washington , Seattle , Washington 98195-1700 , United States
| | - Ksenija D Glusac
- Department of Chemistry , University of Illinois at Chicago , 845 West Taylor Street , Chicago , Illinois 60607 , United States
- Chemical Sciences and Engineering Division , Argonne National Laboratory , 9700 Cass Avenue , Lemont , Illinois 60439 , United States
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138
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Pla P, Wang Y, Martín F, Alcamí M. Hydrogenated polycyclic aromatic hydrocarbons: isomerism and aromaticity. Phys Chem Chem Phys 2020; 22:21968-21976. [DOI: 10.1039/d0cp04177g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple model based on adjacency matrices is introduced to study the stability of hydrogenated polycyclic aromatic hydrocarbons. Aromaticity governs their relative stability having the most stable isomers the higher number of non-hydrogenated rings.
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Affiliation(s)
- Paula Pla
- Departamento de Química
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
| | - Yang Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Fernando Martín
- Departamento de Química
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia)
| | - Manuel Alcamí
- Departamento de Química
- Universidad Autónoma de Madrid
- 28049 Madrid
- Spain
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia)
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139
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Bang K, Choi T. Synthesis of Well‐Defined Poly(norbornene) Containing Carbon Nanodots by Controlled ROMP. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pola.29506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ki‐Taek Bang
- Department of ChemistrySeoul National University Seoul 08826 Republic of Korea
| | - Tae‐Lim Choi
- Department of ChemistrySeoul National University Seoul 08826 Republic of Korea
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140
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Lin Y, Liu Z, Niu Y, Zhang B, Lu Q, Wu S, Centi G, Perathoner S, Heumann S, Yu L, Su DS. Highly Efficient Metal-Free Nitrogen-Doped Nanocarbons with Unexpected Active Sites for Aerobic Catalytic Reactions. ACS NANO 2019; 13:13995-14004. [PMID: 31765120 DOI: 10.1021/acsnano.9b05856] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nitrogen (N)-doped nanocarbons (NDN) as metal-free catalysts have elicited considerable attention toward selective oxidation of alcohols with easily oxidizable groups to aldehydes in the past few years. However, finding a new NDN catalytic material that can meet the requirement of the feasibility on the aerobic catalytics for other complicated alcohols is a big challenge. The real active sites and the corresponding mechanisms on NDN are still unambiguous because of inevitable coexistence of diverse edge sites and N species based on recently reported doping methods. Here, four NDN catalysts with enriched pyridinic N species and without any graphitic N species are simply fabricated via a chemical-vapor-deposition-like method. The results of X-ray photoelectron spectroscopy and X-ray absorption near-edge structure spectra suggest that the dominating N species on NDN are pyridinic N. It is demonstrated that NDN catalysts perform impressive reactivity for aerobic oxidation of complicated alcohols at an atmospheric pressure. Eleven kinds of aromatic molecules with single N species and tunable π conjugation systems are used as model catalysts to experimentally identify the actual role of each N species at a real molecular level. It is suggested that pyridinic N species play an unexpected role in catalytic reactions. Neighboring carbon atoms in pyridinic N species are responsible for facilitating the rate-determining step process clarified by kinetic isotope effects, in situ nuclear magnetic resonance, in situ attenuated total reflectance infrared, and theoretical calculation. Moreover, NDN catalysts exhibit a good catalytic feasibility on the synthesis of important natural products (e.g., intermediates of vitamin E and K3) from phenol oxidation.
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Affiliation(s)
- Yangming Lin
- Institute of Metal Research , Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , P.R. China
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , Mülheim an der Ruhr 45470 , Germany
| | - Zigeng Liu
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , Mülheim an der Ruhr 45470 , Germany
| | - Yiming Niu
- Institute of Metal Research , Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , P.R. China
| | - Bingsen Zhang
- Institute of Metal Research , Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , P.R. China
| | - Qing Lu
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , Mülheim an der Ruhr 45470 , Germany
| | - Shuchang Wu
- Institute of Metal Research , Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , P.R. China
| | - Gabriele Centi
- University of Messina , V.le F. Stagno D'Alcontres 31 , 98166 Messina , Italy
| | - Siglinda Perathoner
- University of Messina , V.le F. Stagno D'Alcontres 31 , 98166 Messina , Italy
| | - Saskia Heumann
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , Mülheim an der Ruhr 45470 , Germany
| | - Linhui Yu
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse 34-36 , Mülheim an der Ruhr 45470 , Germany
- Fuzhou University , Fuzhou 350002 , P.R. China
| | - Dang Sheng Su
- Institute of Metal Research , Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , P.R. China
- Department of Inorganic Chemistry , Fritz Haber Institute of the Max Planck Society , Faradayweg 4-6 , Berlin 14195 , Germany
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141
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Jolly A, Miao D, Daigle M, Morin J. Emerging Bottom‐Up Strategies for the Synthesis of Graphene Nanoribbons and Related Structures. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906379] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anthony Jolly
- Department of Chemistry and Centre de Recherche sur les Matériaux AvancésUniversité Laval 1045 Ave de la Médecine Quebec QC G1V 0A6 Canada
| | - Dandan Miao
- Department of Chemistry and Centre de Recherche sur les Matériaux AvancésUniversité Laval 1045 Ave de la Médecine Quebec QC G1V 0A6 Canada
| | - Maxime Daigle
- Department of Chemistry and Centre de Recherche sur les Matériaux AvancésUniversité Laval 1045 Ave de la Médecine Quebec QC G1V 0A6 Canada
| | - Jean‐François Morin
- Department of Chemistry and Centre de Recherche sur les Matériaux AvancésUniversité Laval 1045 Ave de la Médecine Quebec QC G1V 0A6 Canada
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142
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Jolly A, Miao D, Daigle M, Morin JF. Emerging Bottom-Up Strategies for the Synthesis of Graphene Nanoribbons and Related Structures. Angew Chem Int Ed Engl 2019; 59:4624-4633. [PMID: 31265750 DOI: 10.1002/anie.201906379] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Indexed: 11/09/2022]
Abstract
The solution-phase synthesis is one of the most promising strategies for the preparation of well-defined graphene nanoribbons (GNRs) in large scale. To prepare high quality, defect-free GNRs, cycloaromatization reactions need to be very efficient, proceed without side reaction and mild enough to accommodate the presence of various functional groups. In this Minireview, we present the latest synthetic approaches for the synthesis of GNRs and related structures, including alkyne benzannulation, photochemical cyclodehydrohalogenation, Mallory and Pd- and Ni-catalyzed reactions.
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Affiliation(s)
- Anthony Jolly
- Department of Chemistry and Centre de Recherche sur les Matériaux Avancés, Université Laval, 1045 Ave de la Médecine, Quebec, QC, G1V 0A6, Canada
| | - Dandan Miao
- Department of Chemistry and Centre de Recherche sur les Matériaux Avancés, Université Laval, 1045 Ave de la Médecine, Quebec, QC, G1V 0A6, Canada
| | - Maxime Daigle
- Department of Chemistry and Centre de Recherche sur les Matériaux Avancés, Université Laval, 1045 Ave de la Médecine, Quebec, QC, G1V 0A6, Canada
| | - Jean-François Morin
- Department of Chemistry and Centre de Recherche sur les Matériaux Avancés, Université Laval, 1045 Ave de la Médecine, Quebec, QC, G1V 0A6, Canada
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143
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Yang N, Peng L, Li L, Li J, Wei Z. Theoretical research on the oxidation mechanism of doped carbon based catalysts for oxygen reduction reaction. Phys Chem Chem Phys 2019; 21:26102-26110. [PMID: 31748776 DOI: 10.1039/c9cp04691g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To understand the essential reasons of poor durability and rapid initial performance loss of heteroatom doped graphene catalysts during the electrochemical oxygen reduction reaction (ORR) process, it is necessary to explore the detailed mechanism of carbon active site oxidation reaction (COR) at different electrode potentials, as it may greatly influence the ORR activity. Herein, density functional theory (DFT) calculation is used to investigate all possible COR mechanisms, including Direct-COR and Indirect-COR, on four typical doped-graphene, and understand the competing relation between COR and ORR from a thermodynamic point of view. Our systematic calculations found that the Direct-COR is affected directly by the structural stability of doped-graphene relative to pure graphite, and the Indirect-COR can be accelerated largely by the ORR process due to the ORR intermediate, such as O and OOH. The competition relation between COR and ORR is mainly influenced by the interaction between the doped-graphene and reaction species, stability of doped-structure, ORR mechanism, and electrode potential. For COR, the partial oxidation of doped-graphene is the dominant oxidation reaction compared to complete oxidation in the ORR potential range. More importantly, both partial and complete oxidation of doped-graphene can remarkably depress the ORR activity. Hence, COR should be one of the major contributors to the rapid initial performance loss of carbon based catalysts in stability testing. Our results provide a comprehensive and deep understanding of the oxidation of carbon active sites on doped-graphene surfaces and can guide the design of more robust doped-carbon based catalysts.
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Affiliation(s)
- Na Yang
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Shazhengjie 174, Chongqing 400044, China.
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144
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Saeed TS, Maddipatla D, Narakathu BB, Albalawi SS, Obare SO, Atashbar MZ. Synthesis of a novel hexaazatriphenylene derivative for the selective detection of copper ions in aqueous solution. RSC Adv 2019; 9:39824-39833. [PMID: 35541398 PMCID: PMC9076171 DOI: 10.1039/c9ra08825c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 11/07/2019] [Indexed: 11/21/2022] Open
Abstract
A hexaazatriphenylene (HAT) derivative, naphtho[2,3-h]naphtho[2',3':7,8]quinoxalino[2,3-a]naphtho[2',3':7,8]quinoxalino[2,3-c]phenazine-5,10,15,20,25,30-hexaone (NQH) was synthesized, characterized, and found to have novel properties in being selective toward the detection of copper (Cu2+) ions. The capability of NQH to be employed as a colorimetric, chemo-fluorescence and electrochemical sensor for the detection of Cu2+ was demonstrated by performing UV-Vis absorbance, fluorescence intensity, and cyclic voltammetry (CV) measurements. The interaction between NQH and Cu2+ was initially observed with an obvious color change from yellow to brown upon the addition of Cu2+ ions to NQH. The interaction was also confirmed by UV-Vis absorbance, fluorescence intensity, and mass spectroscopy (MS/MS) measurements. UV absorbance, fluorescence and CV of NQH toward Cu2+ showed good linearity with a detection limit of 3.32 μM, 2.20 μM and 0.78 μM, respectively, which are lower than the toxicity levels of copper in drinking water (20-30 μM) set by the U.S. Environmental Protection Agency (EPA) and World Health Organization (WHO). A 1 : 2 stoichiometry complexation between NQH and Cu2+ was confirmed by Job's plot and MS/MS. In addition, the selectivity and sensitivity of the NQH compound towards Cu2+ ions were further confirmed by performing CV on a screen printed flexible and planar electrochemical sensor.
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Affiliation(s)
- Tahseen S Saeed
- Department of Chemistry, Western Michigan University Kalamazoo Michigan-49008 USA
| | - Dinesh Maddipatla
- Department of Electrical and Computer Engineering, Western Michigan University Kalamazoo Michigan-49008 USA
| | - Binu B Narakathu
- Department of Electrical and Computer Engineering, Western Michigan University Kalamazoo Michigan-49008 USA
| | - Sarah S Albalawi
- Department of Chemistry, Western Michigan University Kalamazoo Michigan-49008 USA
| | - Sherine O Obare
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro Greensboro NC 27401 USA
| | - Massood Z Atashbar
- Department of Electrical and Computer Engineering, Western Michigan University Kalamazoo Michigan-49008 USA
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145
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Yano Y, Mitoma N, Ito H, Itami K. A Quest for Structurally Uniform Graphene Nanoribbons: Synthesis, Properties, and Applications. J Org Chem 2019; 85:4-33. [DOI: 10.1021/acs.joc.9b02814] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuuta Yano
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Nobuhiko Mitoma
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Hideto Ito
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya 464-8602, Japan
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146
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147
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Dyan OT, Borodkin GI, Zaikin PA. The Diels-Alder Reaction for the Synthesis of Polycyclic Aromatic Compounds. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901254] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ok Ton Dyan
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry; 9 Academician Lavrentiev Ave. 630090 Novosibirsk Russian Federation
| | - Gennady I. Borodkin
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry; 9 Academician Lavrentiev Ave. 630090 Novosibirsk Russian Federation
- Novosibirsk State University; 630090 Novosibirsk Russian Federation
| | - Pavel A. Zaikin
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry; 9 Academician Lavrentiev Ave. 630090 Novosibirsk Russian Federation
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148
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Chen Q, Thoms S, Stöttinger S, Schollmeyer D, Müllen K, Narita A, Basché T. Dibenzo[ hi, st]ovalene as Highly Luminescent Nanographene: Efficient Synthesis via Photochemical Cyclodehydroiodination, Optoelectronic Properties, and Single-Molecule Spectroscopy. J Am Chem Soc 2019; 141:16439-16449. [PMID: 31589425 DOI: 10.1021/jacs.9b08320] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dibenzo[hi,st]ovalene (DBOV), as a new nanographene, has demonstrated promising optical properties, such as red emission with a high fluorescence quantum yield of 79% and stimulated emission, as well as high thermal stability and photostability, which indicated its promise as a light-emitting and optical gain material. However, the previous synthetic routes required at least 12 steps. This obstructed access to different derivatives, e.g., to obtain crystals suitable for X-ray diffraction analysis and to tune the optoelectronic properties. Here, we report an efficient synthetic pathway to DBOV based on a sequential iodination-benzannulation of bi(naphthylphenyl)diyne, followed by photochemical cyclodehydroiodination (PCDHI). This protocol included a fused bischrysene as a key intermediate and furnished scalable amounts of meso-substituted DBOV derivatives with different substituents. DBOV with 2,6-dimethylphenyl groups could be used for single-crystal X-ray analysis, revealing the precise structure of the DBOV core. The optoelectronic properties of the DBOV derivatives were investigated by UV-vis absorption and fluorescence spectroscopy, cyclic voltammetry, and density functional theory calculations. Single-molecule spectroscopy at room and low temperatures provided novel insights into the photophysics of DBOV embedded in a polymer film. As a result of weak coupling of the optical transitions to the matrix, single-molecule emission spectra at 4.5 K showed narrow vibronic lines. The fluorescence autocorrelation function covering 9 orders of magnitude in time displayed high contrast photon antibunching and bunching, from which the fluorescence decay rate and the triplet population and depopulation rates could be retrieved. Remarkably, the intersystem crossing rate into the triplet state decreased by more than an order of magnitude at low temperature, demonstrating that temperature can be a crucial parameter to boost single photon emission of an aromatic hydrocarbon.
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Affiliation(s)
- Qiang Chen
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Stefan Thoms
- Institute of Physical Chemistry , Johannes Gutenberg-University , Duesbergweg 10-14 , 55128 Mainz , Germany
| | - Sven Stöttinger
- Institute of Physical Chemistry , Johannes Gutenberg-University , Duesbergweg 10-14 , 55128 Mainz , Germany
| | - Dieter Schollmeyer
- Institute of Organic Chemistry , Johannes Gutenberg-University , Duesbergweg 10-14 , 55099 Mainz , Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany.,Institute of Physical Chemistry , Johannes Gutenberg-University , Duesbergweg 10-14 , 55128 Mainz , Germany
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany.,Organic and Carbon Nanomaterials Unit , Okinawa Institute of Science and Technology Graduate University , Okinawa 904-0495 , Japan
| | - Thomas Basché
- Institute of Physical Chemistry , Johannes Gutenberg-University , Duesbergweg 10-14 , 55128 Mainz , Germany
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149
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On-water surface synthesis of crystalline, few-layer two-dimensional polymers assisted by surfactant monolayers. Nat Chem 2019; 11:994-1000. [DOI: 10.1038/s41557-019-0327-5] [Citation(s) in RCA: 166] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 08/05/2019] [Indexed: 11/08/2022]
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150
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Seo T, Ishiyama T, Kubota K, Ito H. Solid-state Suzuki-Miyaura cross-coupling reactions: olefin-accelerated C-C coupling using mechanochemistry. Chem Sci 2019; 10:8202-8210. [PMID: 31857886 PMCID: PMC6836942 DOI: 10.1039/c9sc02185j] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 07/21/2019] [Indexed: 12/19/2022] Open
Abstract
The Suzuki-Miyaura cross-coupling reaction is one of the most reliable methods for the construction of carbon-carbon bonds in solution. However, examples for the corresponding solid-state cross-coupling reactions remain scarce. Herein, we report the first broadly applicable mechanochemical protocol for a solid-state palladium-catalyzed organoboron cross-coupling reaction using an olefin additive. Compared to previous studies, the newly developed protocol shows a substantially broadened substrate scope. Our mechanistic data suggest that olefin additives might act as dispersants for the palladium-based catalyst to suppress higher aggregation of the nanoparticles, and also as stabilizer for the active monomeric Pd(0) species, thus facilitating these challenging solid-state C-C bond forming cross-coupling reactions.
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Affiliation(s)
- Tamae Seo
- Division of Applied Chemistry and Frontier Chemistry Center , Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido , Japan . ;
| | - Tatsuo Ishiyama
- Division of Applied Chemistry and Frontier Chemistry Center , Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido , Japan . ;
| | - Koji Kubota
- Division of Applied Chemistry and Frontier Chemistry Center , Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido , Japan . ;
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) , Hokkaido University , Sapporo , Hokkaido , Japan
| | - Hajime Ito
- Division of Applied Chemistry and Frontier Chemistry Center , Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido , Japan . ;
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) , Hokkaido University , Sapporo , Hokkaido , Japan
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