Highly efficient photoproduction of charge-separated states in donor-acceptor-linked bis(acetylide) platinum complexes

Shuichi Suzuki; Ryoji Sugimura; Masatoshi Kozaki; Kazutoshi Keyaki; Koichi Nozaki; Noriaki Ikeda; Kimio Akiyama; Keiji Okada

doi:10.1021/ja904241r

Highly efficient photoproduction of charge-separated states in donor-acceptor-linked bis(acetylide) platinum complexes

Shuichi Suzuki, Ryoji Sugimura, Masatoshi Kozaki, Kazutoshi Keyaki, Koichi Nozaki, Noriaki Ikeda, Kimio Akiyama, Keiji Okada

Division of Organic- and Biomaterials Research

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

66 Citations (Scopus)

Abstract

(Chemical Equation Presented) We report a highly efficient charge separation system, D-Pt-A, where D (triphenylamine) and A (naphthalenediimide) are bonded to the Pt moiety through highly twisted phenylene ethynylene linkages. The quantum yields for the formation of the charge-separated state were determined to be nearly unity. The lifetimes of D⁺-Pt-A ^- were ̃1 μs at room temperature and much longer at low temperature. The spin-correlated radical ion pair was directly observed by means of time-resolved EPR spectroscopy.

Original language	English
Pages (from-to)	10374-10375
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	131
Issue number	30
DOIs	https://doi.org/10.1021/ja904241r
Publication status	Published - 2009 Aug 5

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja904241r

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Highly efficient photoproduction of charge-separated states in donor-acceptor-linked bis(acetylide) platinum complexes. / Suzuki, Shuichi; Sugimura, Ryoji; Kozaki, Masatoshi; Keyaki, Kazutoshi; Nozaki, Koichi; Ikeda, Noriaki; Akiyama, Kimio; Okada, Keiji.

In: Journal of the American Chemical Society, Vol. 131, No. 30, 05.08.2009, p. 10374-10375.

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

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abstract = "(Chemical Equation Presented) We report a highly efficient charge separation system, D-Pt-A, where D (triphenylamine) and A (naphthalenediimide) are bonded to the Pt moiety through highly twisted phenylene ethynylene linkages. The quantum yields for the formation of the charge-separated state were determined to be nearly unity. The lifetimes of D+-Pt-A - were{\~ }1 μs at room temperature and much longer at low temperature. The spin-correlated radical ion pair was directly observed by means of time-resolved EPR spectroscopy.",

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AU - Suzuki, Shuichi

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AU - Keyaki, Kazutoshi

AU - Nozaki, Koichi

AU - Ikeda, Noriaki

AU - Akiyama, Kimio

AU - Okada, Keiji

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N2 - (Chemical Equation Presented) We report a highly efficient charge separation system, D-Pt-A, where D (triphenylamine) and A (naphthalenediimide) are bonded to the Pt moiety through highly twisted phenylene ethynylene linkages. The quantum yields for the formation of the charge-separated state were determined to be nearly unity. The lifetimes of D+-Pt-A - were ̃1 μs at room temperature and much longer at low temperature. The spin-correlated radical ion pair was directly observed by means of time-resolved EPR spectroscopy.

AB - (Chemical Equation Presented) We report a highly efficient charge separation system, D-Pt-A, where D (triphenylamine) and A (naphthalenediimide) are bonded to the Pt moiety through highly twisted phenylene ethynylene linkages. The quantum yields for the formation of the charge-separated state were determined to be nearly unity. The lifetimes of D+-Pt-A - were ̃1 μs at room temperature and much longer at low temperature. The spin-correlated radical ion pair was directly observed by means of time-resolved EPR spectroscopy.

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Highly efficient photoproduction of charge-separated states in donor-acceptor-linked bis(acetylide) platinum complexes

Abstract

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