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Photoinduced Intrarotaxane Electron Transfer between Zinc Porphyrin and [60]Fullerene in Benzonitrile
Author(s) -
Watanabe Nobuhiro,
Kihara Nobuhiro,
Furusho Yoshio,
Takata Toshikazu,
Araki Yasuyuki,
Ito Osamu
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200390188
Subject(s) - benzonitrile , superexchange , photoexcitation , porphyrin , zinc , charge (physics) , fullerene , electron transfer , photochemistry , chemistry , physics , excited state , atomic physics , organic chemistry , particle physics , ion
A through‐space superexchange mechanism appears to be responsible for charge recombination (CR) following photoexcitation and charge separation (CS) in rotaxanes containing zinc porphyrin and C 60 moieties (see picture), as suggested by the low activation energy of this process. Furthermore, the charge‐separated state is relatively long‐lived.