Determination of the structural features of a long-lived electron-transfer state of 9-mesityl-10-methylacridinium ion

Manabu Hoshino; Hidehiro Uekusa; Ayana Tomita; Shin Ya Koshihara; Tokushi Sato; Shunsuke Nozawa; Shin Ichi Adachi; Kei Ohkubo; Hiroaki Kotani; Shunichi Fukuzumi

doi:10.1021/ja300602h

Determination of the structural features of a long-lived electron-transfer state of 9-mesityl-10-methylacridinium ion

Manabu Hoshino, Hidehiro Uekusa, Ayana Tomita, Shin Ya Koshihara, Tokushi Sato, Shunsuke Nozawa, Shin Ichi Adachi, Kei Ohkubo, Hiroaki Kotani, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

64 Scopus citations

Abstract

Extensive efforts have been devoted to developing electron donor-acceptor systems that mimic the utilization of solar energy that occurs in photosynthesis. X-ray crystallographic analysis shows how absorbed photon energy is stabilized in those compounds by structural changes upon photoinduced electron transfer (ET). In this study, structural changes of a simple electron donor-acceptor dyad, 9-mesityl-10-methylacridinium cation (Acr ⁺-Mes), upon photoinduced ET were directly observed by laser pump and X-ray probe crystallographic analysis. The N-methyl group in Acr ⁺ was bent, and a weak electrostatic interaction between Mes and a counteranion in the crystal (ClO ₄) was generated by photoinduced ET. These structural changes correspond to reduction and oxidation due to photoinduced ET and directly elucidate the mechanism in Acr ⁺-Mes for mimicking photosynthesis efficiently.

Original language	English
Pages (from-to)	4569-4572
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	134
Issue number	10
DOIs	https://doi.org/10.1021/ja300602h
State	Published - 14 Mar 2012

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title = "Determination of the structural features of a long-lived electron-transfer state of 9-mesityl-10-methylacridinium ion",

abstract = "Extensive efforts have been devoted to developing electron donor-acceptor systems that mimic the utilization of solar energy that occurs in photosynthesis. X-ray crystallographic analysis shows how absorbed photon energy is stabilized in those compounds by structural changes upon photoinduced electron transfer (ET). In this study, structural changes of a simple electron donor-acceptor dyad, 9-mesityl-10-methylacridinium cation (Acr +-Mes), upon photoinduced ET were directly observed by laser pump and X-ray probe crystallographic analysis. The N-methyl group in Acr + was bent, and a weak electrostatic interaction between Mes and a counteranion in the crystal (ClO 4) was generated by photoinduced ET. These structural changes correspond to reduction and oxidation due to photoinduced ET and directly elucidate the mechanism in Acr +-Mes for mimicking photosynthesis efficiently.",

author = "Manabu Hoshino and Hidehiro Uekusa and Ayana Tomita and Koshihara, {Shin Ya} and Tokushi Sato and Shunsuke Nozawa and Adachi, {Shin Ichi} and Kei Ohkubo and Hiroaki Kotani and Shunichi Fukuzumi",

year = "2012",

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doi = "10.1021/ja300602h",

language = "English",

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T1 - Determination of the structural features of a long-lived electron-transfer state of 9-mesityl-10-methylacridinium ion

AU - Hoshino, Manabu

AU - Uekusa, Hidehiro

AU - Tomita, Ayana

AU - Koshihara, Shin Ya

AU - Sato, Tokushi

AU - Nozawa, Shunsuke

AU - Adachi, Shin Ichi

AU - Ohkubo, Kei

AU - Kotani, Hiroaki

AU - Fukuzumi, Shunichi

PY - 2012/3/14

Y1 - 2012/3/14

N2 - Extensive efforts have been devoted to developing electron donor-acceptor systems that mimic the utilization of solar energy that occurs in photosynthesis. X-ray crystallographic analysis shows how absorbed photon energy is stabilized in those compounds by structural changes upon photoinduced electron transfer (ET). In this study, structural changes of a simple electron donor-acceptor dyad, 9-mesityl-10-methylacridinium cation (Acr +-Mes), upon photoinduced ET were directly observed by laser pump and X-ray probe crystallographic analysis. The N-methyl group in Acr + was bent, and a weak electrostatic interaction between Mes and a counteranion in the crystal (ClO 4) was generated by photoinduced ET. These structural changes correspond to reduction and oxidation due to photoinduced ET and directly elucidate the mechanism in Acr +-Mes for mimicking photosynthesis efficiently.

AB - Extensive efforts have been devoted to developing electron donor-acceptor systems that mimic the utilization of solar energy that occurs in photosynthesis. X-ray crystallographic analysis shows how absorbed photon energy is stabilized in those compounds by structural changes upon photoinduced electron transfer (ET). In this study, structural changes of a simple electron donor-acceptor dyad, 9-mesityl-10-methylacridinium cation (Acr +-Mes), upon photoinduced ET were directly observed by laser pump and X-ray probe crystallographic analysis. The N-methyl group in Acr + was bent, and a weak electrostatic interaction between Mes and a counteranion in the crystal (ClO 4) was generated by photoinduced ET. These structural changes correspond to reduction and oxidation due to photoinduced ET and directly elucidate the mechanism in Acr +-Mes for mimicking photosynthesis efficiently.

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JF - Journal of the American Chemical Society

IS - 10

ER -

Determination of the structural features of a long-lived electron-transfer state of 9-mesityl-10-methylacridinium ion

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