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
    神奈川大学大学院  理学研究科 理学専攻(化学領域)
   職種   教授
言語種別 英語
発行・発表の年月 2006
形態種別 学術雑誌
査読 査読あり
標題 Photoinduced electron transfer processes in rotaxanes containing [60]fullerene and ferrocene: Effect of axle charge on light-induced molecular motion
執筆形態 共著
掲載誌名 Aust. J. Chem.
巻・号・頁 59(3),pp.186-192
著者・共著者 Atula S. D. Sandanayaka, Hisahiro Sasabe, Yasuyuki Araki, Nobuhiro Kihara, Yoshio Furusho, Toshikazu Takata, Osamu Ito
概要 Two rotaxanes contg. [60]fullerene (C60) as pendants on a crown-ether necklace, to which ferrocene (Fc) as axle stoppers were added, have been synthesized. One rotaxane has an ammonium cation in the center of the axle (C60;Fc)Rot+ and the other has a neutral axle (C60;Fc)Rot. In both rotaxanes, efficient intra-rotaxane photoinduced electron-transfer processes have been obsd. by the selective excitation of C60 which acts as a photosensitized electron acceptor. The rates and efficiencies of the charge-sepn. and charge-recombination processes were evaluated by time-resolved fluorescence and transient absorption measurements with changing solvent polarity. From the different kinetic parameters between (C60;Fc)Rot+ and (C60;Fc)Rot, the light-induced mol. motions of these rotaxanes in the excited states and charge-sepd. states were sep. revealed.
DOI 10.1071/CH05311
ISSN 0004-9425