1
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Murai M, Enoki T, Yamaguchi S. Dithienoazepine-Based Near-Infrared Dyes: Janus-Faced Effects of a Thiophene-Fused Structure on Antiaromatic Azepines. Angew Chem Int Ed Engl 2023; 62:e202311445. [PMID: 37699858 DOI: 10.1002/anie.202311445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/10/2023] [Accepted: 09/12/2023] [Indexed: 09/14/2023]
Abstract
We here disclose that the incorporation of thiophene rings into a seven-membered 8π azepine in a fused fashion produces a useful antiaromatic core for near-infrared (NIR) dyes. In contrast to dibenzazepine derivatives with bent structures, dithieno-fused derivatives with electron-accepting groups adopt flat conformations in the ground state. The dithieno-fused derivatives exhibited broad absorption spectra that cover the visible region as well as sharp emission bands in the NIR region, which are considerably red-shifted relative to those of the dibenzo-fused congeners. Theoretical study revealed two contradictory effects of the less-aromatic thiophene-fused structure, i.e., the enhancement of the antiaromaticity of the adjacent azepine ring and the relief of the antiaromaticity through the contribution of a quinoidal resonance form. The combination of the dithienoazepine core with cationic electron-accepting groups produced a NIR fluorescent dye with an emission at 878 nm in solution.
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Affiliation(s)
- Masahito Murai
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Takahiro Enoki
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8601, Japan
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2
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Okuda Y, Orita A, Otera J. Syntheses of π-Expanded Alkynes and Alkenes by Using Sulfones as Starting Compounds. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Akihiro Orita
- Department of Applied Chemistry and Biotechnology, Okayama University of Science
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3
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Hong C, Baltazar J, Tovar JD. Manifestations of antiaromaticity in organic materials: case studies of cyclobutadiene, borole, and pentalene. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | - John D. Tovar
- Johns Hopkins University Department of Chemistry Department of Materials Science and Engineering 3400 N. Charles StreetNCB 316 MD 21218 Baltimore UNITED STATES
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4
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Konishi A, Yasuda M. Breathing New Life into Nonalternant Hydrocarbon Chemistry: Syntheses and Properties of Polycyclic Hydrocarbons Containing Azulene, Pentalene, and Heptalene Frameworks. CHEM LETT 2021. [DOI: 10.1246/cl.200650] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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5
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Kawai S, Sang H, Kantorovich L, Takahashi K, Nozaki K, Ito S. An Endergonic Synthesis of Single Sondheimer–Wong Diyne by Local Probe Chemistry. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shigeki Kawai
- Research Center for Advanced Measurement and CharacterisationNational Institute for Materials Science 1-2-1 Sengen Tsukuba Ibaraki 305-0047 Japan
| | - Hongqian Sang
- Institute for Interdisciplinary ResearchJianghan University Wuhan 430056 China
| | - Lev Kantorovich
- Physics DepartmentKing's College London The Strand London WC2R 2LS UK
| | - Keisuke Takahashi
- Department of Chemistry and BiotechnologyGraduate School of EngineeringThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Kyoko Nozaki
- Department of Chemistry and BiotechnologyGraduate School of EngineeringThe University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| | - Shingo Ito
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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6
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Kawai S, Sang H, Kantorovich L, Takahashi K, Nozaki K, Ito S. An Endergonic Synthesis of Single Sondheimer-Wong Diyne by Local Probe Chemistry. Angew Chem Int Ed Engl 2020; 59:10842-10847. [PMID: 32227562 DOI: 10.1002/anie.202001268] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/27/2020] [Indexed: 11/11/2022]
Abstract
Recent advances in scanning probe microscopy on surface enable not only direct observation of molecular structures but also local probe reactions, in which unstable short-lived products have been synthesized and analyzed. Now, an endergonic reaction to synthesize a single Sondheimer-Wong diyne from 6,13-dibromopentaleno[1,2-b:4,5-b']dinaphthalene by local probe chemistry on a ultra-thin film of NaCl formed on a Cu(111) surface at 4.3 K is presented. The structures of the precursor, two intermediates, and the final product were directly identified by the differential conductance imaging with a CO functionalized tip. DFT calculations revealed that the multiple-step reaction, being endergonic overall, is facilitated by temporal charging and discharging of the molecule placed in the nanometric junction between the Cu tip and the Cu substrate underneath the ultra-thin NaCl film. This local probe reaction expands possibilities to synthesize nanocarbon materials in a bottom-up manner.
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Affiliation(s)
- Shigeki Kawai
- Research Center for Advanced Measurement and Characterisation, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| | - Hongqian Sang
- Institute for Interdisciplinary Research, Jianghan University, Wuhan, 430056, China
| | - Lev Kantorovich
- Physics Department, King's College London, The Strand, London, WC2R 2LS, UK
| | - Keisuke Takahashi
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Shingo Ito
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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7
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Mayer PJ, El Bakouri O, Holczbauer T, Samu GF, Janáky C, Ottosson H, London G. Structure-Property Relationships in Unsymmetric Bis(antiaromatics): Who Wins the Battle between Pentalene and Benzocyclobutadiene?†. J Org Chem 2020; 85:5158-5172. [PMID: 32189503 PMCID: PMC7311060 DOI: 10.1021/acs.joc.9b03119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
According
to the currently accepted structure–property relationships,
aceno-pentalenes with an angular shape (fused to the 1,2-bond of the
acene) exhibit higher antiaromaticity than those with a linear shape
(fused to the 2,3-bond of the acene). To explore and expand the current
view, we designed and synthesized molecules where two isomeric, yet,
different, 8π antiaromatic subunits, a benzocyclobutadiene (BCB)
and a pentalene, are combined into, respectively, an angular and a
linear topology via an unsaturated six-membered ring. The antiaromatic
character of the molecules is supported experimentally by 1H NMR, UV–vis, and cyclic voltammetry measurements and X-ray
crystallography. The experimental results are further confirmed by
theoretical studies including the calculation of several aromaticity
indices (NICS, ACID, HOMA, FLU, MCI). In the case of the angular molecule,
double bond-localization within the connecting six-membered ring resulted
in reduced antiaromaticity of both the BCB and pentalene subunits,
while the linear structure provided a competitive situation for the
two unequal [4n]π subunits. We found that in
the latter case the BCB unit alleviated its unfavorable antiaromaticity
more efficiently, leaving the pentalene with strong antiaromaticity.
Thus, a reversed structure–antiaromaticity relationship when
compared to aceno-pentalenes was achieved.
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Affiliation(s)
- Péter J Mayer
- MTA-TTK "Lendület" Functional Organic Materials Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, 1117 Budapest, Hungary.,Institute of Chemistry, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
| | - Ouissam El Bakouri
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 530, 751 20 Uppsala, Sweden
| | - Tamás Holczbauer
- Institute of Organic Chemistry, Research Centre of Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, 1117 Budapest, Hungary
| | - Gergely F Samu
- Department of Physical Chemistry and Materials Science, Interdisciplinary Excellence Centre, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
| | - Csaba Janáky
- Department of Physical Chemistry and Materials Science, Interdisciplinary Excellence Centre, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
| | - Henrik Ottosson
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 530, 751 20 Uppsala, Sweden
| | - Gábor London
- MTA-TTK "Lendület" Functional Organic Materials Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, 1117 Budapest, Hungary
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8
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Miki K, Ohe K. π‐Conjugated Macrocycles Bearing Angle‐Strained Alkynes. Chemistry 2019; 26:2529-2575. [DOI: 10.1002/chem.201904114] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/24/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Koji Miki
- Department of Energy and Hydrocarbon ChemistryGraduate School of EngineeringKyoto University Katsura Nishikyo-ku Kyoto 615–8510 Japan
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon ChemistryGraduate School of EngineeringKyoto University Katsura Nishikyo-ku Kyoto 615–8510 Japan
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9
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Kumar RA, Pattanayak MR, Yen‐Pon E, Eliyan J, Porte K, Bernard S, Riomet M, Thuéry P, Audisio D, Taran F. Strain‐Promoted 1,3‐Dithiolium‐4‐olates–Alkyne Cycloaddition. Angew Chem Int Ed Engl 2019; 58:14544-14548. [DOI: 10.1002/anie.201908052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/30/2019] [Indexed: 01/09/2023]
Affiliation(s)
- Ramar Arun Kumar
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
- SRM Research Institute Department of Chemistry SRM Institute of Science and Technology, Kattankulathur 603203 Chennai India
| | - Manas R. Pattanayak
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Expédite Yen‐Pon
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Jijy Eliyan
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Karine Porte
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Sabrina Bernard
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Margaux Riomet
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Pierre Thuéry
- NIMBE CEA CNRS Université Paris-Saclay 91191 Gif-sur-Yvette France
| | - Davide Audisio
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Frédéric Taran
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
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10
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Kumar RA, Pattanayak MR, Yen‐Pon E, Eliyan J, Porte K, Bernard S, Riomet M, Thuéry P, Audisio D, Taran F. Strain‐Promoted 1,3‐Dithiolium‐4‐olates–Alkyne Cycloaddition. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ramar Arun Kumar
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
- SRM Research Institute Department of Chemistry SRM Institute of Science and Technology, Kattankulathur 603203 Chennai India
| | - Manas R. Pattanayak
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Expédite Yen‐Pon
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Jijy Eliyan
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Karine Porte
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Sabrina Bernard
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Margaux Riomet
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Pierre Thuéry
- NIMBE CEA CNRS Université Paris-Saclay 91191 Gif-sur-Yvette France
| | - Davide Audisio
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
| | - Frédéric Taran
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT Université Paris-Saclay F-91191 Gif-sur-Yvette France
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11
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On the electron flow sequence driving the hydrometallation of acetylene by lithium hydride. J Mol Model 2018; 24:305. [DOI: 10.1007/s00894-018-3841-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/20/2018] [Indexed: 10/28/2022]
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12
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Affiliation(s)
- Suguru Yoshida
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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13
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Konishi A, Okada Y, Nakano M, Sugisaki K, Sato K, Takui T, Yasuda M. Synthesis and Characterization of Dibenzo[a,f]pentalene: Harmonization of the Antiaromatic and Singlet Biradical Character. J Am Chem Soc 2017; 139:15284-15287. [DOI: 10.1021/jacs.7b05709] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Akihito Konishi
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1
Yamadaoka, Suita, Osaka 565-0871, Japan
- Center
for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yui Okada
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1
Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Motohiro Nakano
- Department
of Chemistry, Graduate School of Science, Osaka University, 1-1
Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Kenji Sugisaki
- Department
of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Kazunobu Sato
- Department
of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Takeji Takui
- Department
of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Makoto Yasuda
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1
Yamadaoka, Suita, Osaka 565-0871, Japan
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14
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Wilbuer J, Grenz DC, Schnakenburg G, Esser B. Donor- and acceptor-functionalized dibenzo[a,e]pentalenes: modulation of the electronic band gap. Org Chem Front 2017. [DOI: 10.1039/c6qo00487c] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The syntheses, and optoelectronic and structural properties of 2,7-donor- and acceptor-functionalized dibenzo[a,e]pentalenes, accessed in a versatile synthetic route, are presented and discussed.
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Affiliation(s)
- J. Wilbuer
- Institute for Organic Chemistry
- University of Freiburg
- 79104 Freiburg
- Germany
- Kekulé-Institute for Organic Chemistry and Biochemistry
| | - D. C. Grenz
- Institute for Organic Chemistry
- University of Freiburg
- 79104 Freiburg
- Germany
| | - G. Schnakenburg
- Institute for Inorganic Chemistry
- University of Bonn
- 53121 Bonn
- Germany
| | - B. Esser
- Institute for Organic Chemistry
- University of Freiburg
- 79104 Freiburg
- Germany
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15
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Takahashi K, Ito S, Shintani R, Nozaki K. Selective synthesis of unsymmetric dibenzo[ a, e]pentalenes by a rhodium-catalysed stitching reaction. Chem Sci 2016; 8:101-107. [PMID: 28451153 PMCID: PMC5304618 DOI: 10.1039/c6sc04560j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 11/02/2016] [Indexed: 01/20/2023] Open
Abstract
A rhodium-catalysed stitching reaction between 2-(silylethynyl)arylboronates and 2-(silylethynyl)aryl bromides has been developed for the synthesis of unsymmetric dibenzo[a,e]pentalenes. The introduction of appropriately sized silyl groups on the starting substrates led to a high crossover selectivity without using an excess amount of either substrate. The present stitching reaction could produce a variety of unsymmetric dibenzo[a,e]pentalene derivatives, including those with electronically different substituents on the fused benzene rings as well as heteroarene fused compounds. Desilylative halogenation was also demonstrated to synthesise the corresponding halogenated dibenzo[a,e]pentalenes, which can be used as building blocks for further chemical transformations.
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Affiliation(s)
- Keisuke Takahashi
- Department of Chemistry and Biotechnology , Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan . ; ; ; ; Tel: +81-3-5841-7261
| | - Shingo Ito
- Department of Chemistry and Biotechnology , Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan . ; ; ; ; Tel: +81-3-5841-7261
| | - Ryo Shintani
- Department of Chemistry and Biotechnology , Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan . ; ; ; ; Tel: +81-3-5841-7261
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology , Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan . ; ; ; ; Tel: +81-3-5841-7261
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16
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Kato SI, Kuwako S, Takahashi N, Kijima T, Nakamura Y. Benzo- and Naphthopentalenes: Syntheses, Structures, and Properties. J Org Chem 2016; 81:7700-10. [PMID: 27467138 DOI: 10.1021/acs.joc.6b01409] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Benzo- and naphthopentalene derivatives were synthesized, and the effects of structural variations on their antiaromaticity and optoelectronic and electrochemical properties were examined experimentally and theoretically in detail. The results unveiled that with increasing the bond order of the carbon-carbon bond ([5,6] junction) shared by the pentalene and aromatic moieties, the 8π antiaromatic character of pentalene is enhanced and the HOMO-LUMO gap is decreased, which accompanies both the elevation of the HOMO level and the lowering of the LUMO level. The ethynylene units between the pentalene skeleton and the phenyl groups proved to extend π-conjugation sufficiently.
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Affiliation(s)
- Shin-Ichiro Kato
- Division of Molecular Science, Faculty of Science and Technology, Gunma University , 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Satoshi Kuwako
- Division of Molecular Science, Faculty of Science and Technology, Gunma University , 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Nobutaka Takahashi
- Division of Molecular Science, Faculty of Science and Technology, Gunma University , 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Tomokazu Kijima
- Division of Molecular Science, Faculty of Science and Technology, Gunma University , 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Yosuke Nakamura
- Division of Molecular Science, Faculty of Science and Technology, Gunma University , 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
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17
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Affiliation(s)
- Suguru Yoshida
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Isao Kii
- RIKEN Center for Life Science Technologies
| | - Takamitsu Hosoya
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
- RIKEN Center for Life Science Technologies
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18
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Chen R, Zheng C, Li C, Li H, Wang Z, Tang Y, Jiang H, Tan Z, Huang W. Efficient synthesis and photovoltaic properties of highly rigid perylene-embedded benzothiazolyls. Polym Chem 2016. [DOI: 10.1039/c5py01791b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Perylene-embedded benzothiazolyls, designed by 2D-fusing of dithienylbenzothiadiazoles, have been synthesized and characterized as new electron-accepting building-blocks for organic photovoltaic applications.
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Affiliation(s)
- Runfeng Chen
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Chunhua Zheng
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Cong Li
- Beijing Key Laboratory of Novel Thin Film Solar Cells
- North China Electric Power University
- Beijing 102206
- China
| | - Huanhuan Li
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Zhixiang Wang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Yuting Tang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Hongji Jiang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Zhanao Tan
- Beijing Key Laboratory of Novel Thin Film Solar Cells
- North China Electric Power University
- Beijing 102206
- China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
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19
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Shen JJ, Shao JY, Zhu X, Zhong YW. Amine–Amine Electronic Coupling through a Dibenzo[a,e]pentalene Bridge. Org Lett 2015; 18:256-9. [PMID: 26720697 DOI: 10.1021/acs.orglett.5b03408] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jun-Jian Shen
- Beijing National Laboratory
for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 2 Bei Yi Jie, Zhong Guan Cun, Beijing 100190, China
| | - Jiang-Yang Shao
- Beijing National Laboratory
for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 2 Bei Yi Jie, Zhong Guan Cun, Beijing 100190, China
| | - Xiaozhang Zhu
- Beijing National Laboratory
for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 2 Bei Yi Jie, Zhong Guan Cun, Beijing 100190, China
| | - Yu-Wu Zhong
- Beijing National Laboratory
for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 2 Bei Yi Jie, Zhong Guan Cun, Beijing 100190, China
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