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Suzuki T, Médebielle M, Hayashi Y, Ishigaki Y, Merad J. 5-Arylidenetetronate as a Versatile Electrophore for Pi-Extended Electron Acceptors. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ishigaki Y, Kawai H, Katoono R, Fujiwara K, Higuchi H, Kikuchi H, Suzuki T. Bis(diarylethenyl)-thiophenes, -bithiophenes, and -terthiophenes: a new series of electrochromic systems that exhibit a fluorescence response. CAN J CHEM 2017. [DOI: 10.1139/cjc-2016-0222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
2,5-Bis(diarylethenyl)thiophenes (1) and their bithiophene (2) and terthiophene (3) homologues were designed as a new series of violene/cyanine-hybrid-type electrochromic materials. Alkoxyphenyl and dialkylaminophenyl groups are used as the aryl group in the cyanine parts of 1/2/3O and 1/2/3N, respectively, which emit fluorescence in the neutral state but not in the oxidized state. Voltammetric analyses of 18 newly prepared electron donors show that they all undergo two reversible one-electron oxidations. Redox potentials, UV–vis spectral features, and fluorescence quantum yields are important parameters for characterizing the present electrochromic behavior with a fluorescence response, and can be finely tuned by changing aryl groups in the cyanine part, the number of thiophene rings in the violene part, and the alkyl-chain length of the alkoxyphenyl or diaklylaminophenyl groups (R = CH3, C8H17, C16H33), which makes this a versatile platform for the design of novel electrochromic materials.
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Affiliation(s)
- Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Hidetoshi Kawai
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Kenshu Fujiwara
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Hiroki Higuchi
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Hirotsugu Kikuchi
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
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Suzuki T, Nojo W, Sakano Y, Katoono R, Ishigaki Y, Ohno H, Fujiwara K. Redox-induced Conformational Changes in 1,3-Propylene- andm-Xylylenebis[5-(10-butyl-5,10-dihydrobenzo[a]indolo[2,3-c]carbazole)]: Twin-BIC Donors that Form Sandwich-like Dimeric Cations Exhibiting NIR Absorption. CHEM LETT 2016. [DOI: 10.1246/cl.160278] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Suzuki T, Umezawa Y, Sakano Y, Tamaoki H, Katoono R, Fujiwara K. Reversible Interconversion between 11,11,12,12-Tetraaryl-1,4-diaza/-1,4,5,8-tetraazaanthraquinodimethanes and Their Cationic Species: Electrochromic and Halochromic Responses. CHEM LETT 2015. [DOI: 10.1246/cl.150251] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Yu Umezawa
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Yuto Sakano
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Hitomi Tamaoki
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Ryo Katoono
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Kenshu Fujiwara
- Department of Chemistry, Faculty of Science, Hokkaido University
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Takeda T, Akutagawa T. Preparation, Structure, and Redox Behavior of Bis(diarylmethylene)dihydrothiophene and Its π-Extended Analogues. J Org Chem 2015; 80:2455-61. [DOI: 10.1021/acs.joc.5b00021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takashi Takeda
- Institute
of Multidisciplinary
Research for Advanced Materials, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Tomoyuki Akutagawa
- Institute
of Multidisciplinary
Research for Advanced Materials, Tohoku University, Sendai, Miyagi 980-8577, Japan
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