Photoinduced charge separation of 10-phenyl-10H-phenothiazine2- phenylanthraquinone dyad bridged by bicyclo[2.2.2]octane

Ayumu Karimata, Hidetoshi Kawauchi, Shuichi Suzuki, Masatoshi Kozaki, Noriaki Ikeda, Kazutoshi Keyaki, Koichi Nozaki, Kimio Akiyama, Keiji Okada

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Photoinduced charge separation of a phenothiazineanthraquinone dyad 1 with a rigid bicyclo[2.2.2]octane spacer was investigated by means of picosecond and nanosecond transient absorption and time-resolved ESR spectroscopies. Irradiation of the anthraquinone chromophore in 1 produced the chargeseparated (CS) state in THF. Time constants of the formation and the decay of the CS state were determined to be 1.3 ns and 1.0 μs, respectively. Time-resolved ESR showed spin-polarized all-emission signals due to the formation of the CS state via the triplet mechanism.

Original languageEnglish
Pages (from-to)794-796
Number of pages3
JournalChemistry Letters
Volume42
Issue number8
DOIs
Publication statusPublished - 2013

ASJC Scopus subject areas

  • Chemistry(all)

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