キハラ ノブヒロ   Kihara Nobuhiro
  木原 伸浩
   所属   神奈川大学  理学部 化学科
   職種   教授
言語種別 英語
発行・発表の年月 2005/03
形態種別 学術雑誌
査読 査読あり
標題 Photoinduced intramolecular electron-transfer processes in [60]fullerene-(spacer)-N,N-bis(biphenylyl)aniline dyad in solutions
執筆形態 共著
掲載誌名 J. Phys. Chem. A
巻・号・頁 109(11),pp.2428-2435
著者・共著者 G. A. Rajkumar, Atula S. D. Sandanayaka, Kei-ichiro Ikeshita, M. Itou, Yasuyuki Araki, Yoshio Furusho, Nobuhiro Kihara, Osamu Ito, Toshikazu Takata
概要 Intramol. photoinduced charge-sepn. and charge-recombination processes in a covalently connected C60-(spacer)-N,N-bis(biphenylyl)aniline (C60-spacer-BBA) dyad have been studied. The obsd. low fluorescence intensity and the short fluorescence lifetime of the C60 moiety of the dyad indicate that charge sepn. takes place via the excited singlet state of the C60 moiety at a quite fast rate and a high efficiency. The charge-sepd. state decays with a lifetime of 330-360 ns in PhCN and THF at room temp. From temp. dependence of the charge-recombination rate consts., the reorganization energy was evaluated to be 0.77-0.87 eV, which indicates that the charge-recombination process is in the inverted region of the Marcus parabola. With lowering temp., the contribution of charge sepn. via the excited triplet state of the C60 moiety increases due to an increase in solvation of C60.--spacer-BBA.+.
DOI 10.1021/jp046879c
ISSN 1089-5639