研究者情報 | 神奈川大学

キハラ　ノブヒロ Kihara Nobuhiro 木原　伸浩所属神奈川大学理学部理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	2009/12
形態種別	学術雑誌
査読	査読あり
標題	Axle charge effects on photoinduced electron transfer processes in rotaxanes containing porphyrin and [60]fullerene
執筆形態	共著
掲載誌名	Phys. Chem. Chem. Phys.
巻・号・頁	11(46),pp.10908-10915
著者・共著者	Hisahiro Sasabe, Atula S. D. Sandanayaka, Nobuhiro Kihara, Yoshio Furusho, Toshikazu Takata, Yasuyuki Araki, Osamu Ito
概要	Two rotaxanes contg. zinc porphyrin (ZnP) with crown ether and [60]fullerene (C60) with cationic and neutral axles are synthesized. The charge-transfer interaction is revealed by absorption spectra for the rotaxane with a short distance, but not for the rotaxane with a long distance, which strongly affects the rates and efficiencies of photoinduced electron-transfer and energy-transfer processes via the excited singlet states of the ZnP and C60 moieties and their triplet states, as revealed by the time-resolved fluorescence and absorption measurements. The rate of the charge recombination of the radical ion pair of the rotaxane with a neutral axle is slower than that of the rotaxane with a cationic axle, due to the loose structure of the former rotaxane, which results from the long distance between the C60 anion radical and the ZnP cation radical.
DOI	10.1039/b913966d
ISSN	1463-9076