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Sako K, Hasegawa T, Onda H, Shiotsuka M, Watanabe M, Shinmyozu T, Tojo S, Fujitsuka M, Majima T, Hirao Y, Kubo T, Iwanaga T, Toyota S, Takemura H. Donor-Donor'-Acceptor Triads Based on [3.3]Paracyclophane with a 1,4-Dithiafulvene Donor and a Cyanomethylene Acceptor: Synthesis, Structure, and Electrochemical and Photophysical Properties. Chemistry 2018; 24:11407-11416. [PMID: 29845675 DOI: 10.1002/chem.201801774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Indexed: 11/07/2022]
Abstract
Donor-donor'-acceptor triads (1, 2), based on [3.3]paracyclophane ([3.3]PCP) as a bridge, with electron-donating properties (D') using 1,4-dithiafulvene (DTF; TTF half unit) as a donor and dicyanomethylene (DCM; TCNE half unit) or an ethoxycarbonyl-cyanomethylene (ECM) as an acceptor were designed and synthesized. The pulse radiolysis study of 1 a in 1,2-dichloroethane allowed the clear assignment of the absorption bands of the DTF radical cation (1 a.+ ), whereas the absorption bands due to the DCM radical anion could not be observed by γ-ray radiolysis in 2-methyltetrahydrofuran rigid glass at 77 K. Electrochemical oxidation of 1 a first generates the DTF radical cation (1 a.+ ), the absorption bands of which are in agreement with those observed by a pulse radiolysis study, followed by dication (1 a2+ ). The ESR spectrum of 1 a.+ showed a symmetrical signal with fine structure and an ESR simulation predicted that the spin of 1 a.+ is delocalized over S and C atoms of the DTF moiety and the central C atom of the trimethylene bridge bearing the DTF moiety. Pulse radiolysis, ESR, and electrochemical studies indicate that the DTF radical cation of 1 a.+ is more stable than that of 6.+ , and the latter shows a strong tendency to dimerize. This result indicates that the [3.3]PCP moiety as a bridge can stabilize the DTF radical cation more than the 1,3-diphenylpropane moiety because of kinetic stability due to its rigid structure and the weak electronic interaction of DTF and DCM moieties through [3.3]PCP.
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Affiliation(s)
- Katsuya Sako
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, 466-8555, Japan
| | - Tomoya Hasegawa
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, 466-8555, Japan
| | - Hiroyuki Onda
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, 466-8555, Japan
| | - Michito Shiotsuka
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, 466-8555, Japan
| | - Motonori Watanabe
- International Institute for Carbon-Neutral Energy Research (I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Teruo Shinmyozu
- Department of Chemistry, National (Taiwan) University, No. 1, Section 4, Roosevelt Rd, Taipei, 10617, Taiwan
| | - Sachiko Tojo
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Yasukazu Hirao
- Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka, 560-0043, Japan
| | - Takashi Kubo
- Department of Chemistry, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka, 560-0043, Japan
| | - Tetsuo Iwanaga
- Department of Chemistry, Faculty of Science, Okayama University of Science, Ridaicho 1-1, Kita-ku, Okayama, 700-0005, Japan
| | - Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Ookayama 2-12-1, Meguro-ku, Tokyo, 152-8550, Japan
| | - Hiroyuki Takemura
- Department of Chemical and Biological Science, Faculty of Science, Japan Women's University, Mejirodai 2-8-1, Bunkyo-ku, Tokyo, 112-8681, Japan
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Supur M, Kawashima Y, Larsen KR, Ohkubo K, Jeppesen JO, Fukuzumi S. Robust Inclusion Complexes of Crown Ether Fused Tetrathiafulvalenes with Li
+
@C
60
to Afford Efficient Photodriven Charge Separation. Chemistry 2014; 20:13976-83. [DOI: 10.1002/chem.201402449] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Mustafa Supur
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA, JST, Suita, Osaka 565‐0871 (Japan), Fax: (+81) 6‐6879‐7370
| | - Yuki Kawashima
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA, JST, Suita, Osaka 565‐0871 (Japan), Fax: (+81) 6‐6879‐7370
| | - Karina R. Larsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense‐M (Denmark)
| | - Kei Ohkubo
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA, JST, Suita, Osaka 565‐0871 (Japan), Fax: (+81) 6‐6879‐7370
| | - Jan O. Jeppesen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense‐M (Denmark)
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA, JST, Suita, Osaka 565‐0871 (Japan), Fax: (+81) 6‐6879‐7370
- Department of Bioinspired Science, Ewha Womans University, Seoul 120‐750 (Korea)
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Liu Y, Wang C, Li M, Lv S, Lai G, Shen Y. A new fluorescence molecular switch incorporating TTF and tetraphenylporphyrin units. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424607000837] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A donor-σ-acceptor compound incorporating tetrathiafulvalene and tetraphenylporphyrin units was synthesized. The structures of the target compound and its intermediates have been characterized by 1 H NMR, ESI MS, UV-vis, IR and mp. The results of UV-vis and cyclic voltammetry of the compound indicated negligible intramolecular charge transfer interaction in its ground state. The fluorescence and fluorescence lifetime of the compound were reduced, compared to tetraphenylporphyrin, which evidently indicated that photoinduced electron transfer occurred from the tetrathiafulvalene (TTF) unit to the tetraphenylporphyrin unit in the excited state. The fluorescence intensity of the compound could be reversibly modulated by sequential oxidation and reduction of the TTF unit using electrochemical and chemical methods. Therefore, a new fluorescence molecular switch based on TTF and porphyrin units was established.
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Affiliation(s)
- Yibo Liu
- Laboratory of Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, China
| | - Chengyun Wang
- Laboratory of Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, China
| | - Meijiang Li
- Key Lab of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, China
| | - Sufang Lv
- Key Lab of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, China
| | - Guoqiao Lai
- Key Lab of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, China
| | - Yongjia Shen
- Laboratory of Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, China
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Guldi DM, Spänig F, Kreher D, Perepichka IF, van der Pol C, Bryce MR, Ohkubo K, Fukuzumi S. Contrasting Photodynamics between C60-Dithiapyrene and C60-Pyrene Dyads. Chemistry 2007; 14:250-8. [PMID: 17907123 DOI: 10.1002/chem.200700837] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The photodynamics of a C60-dithiapyrene donor-acceptor conjugate were compared with the corresponding C60-pyrene conjugate. The photoinduced charge separation and subsequent charge recombination processes were examined by time-resolved fluorescence measurements on the picosecond timescale and transient absorption measurements on the picosecond and microsecond timescales with detection in the visible and near-infrared regions. We have observed quite long lifetimes (i.e., up to 1.01 ns) for the photogenerated charge-separated state in a C60-dithiapyrene dyad without the need for i) a long spacer between the two moieties, or ii) a gain in aromaticity in the radical ion pair.
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Affiliation(s)
- Dirk M Guldi
- Institute for Physical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany.
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Deuk Lee H, Keun Oh S, Soo Choi C, Kay K. A Novel Amphiphilic Re
I
Complex with Bis(fullerene)‐Substituted Bipyridine Ligands: Synthesis, Electrochemistry, and Langmuir Film. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200600875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hwi Deuk Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 443‐749, South Korea, Fax: +82‐31‐219‐1615
| | - Sang Keun Oh
- Department of Molecular Science and Technology, Ajou University, Suwon 443‐749, South Korea, Fax: +82‐31‐219‐1615
| | - Chan Soo Choi
- Department of Applied Chemistry, Daejeon University, Daejeon 300‐716, South Korea
| | - Kwang‐Yol Kay
- Department of Molecular Science and Technology, Ajou University, Suwon 443‐749, South Korea, Fax: +82‐31‐219‐1615
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