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 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