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Time-resolved EPR investigation of the triplet states of C60 and C70

✍ Scribed by Masahide Terazima; Noboru Hirota; Hisanori Shinohara; Yahachi Saito

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 488 KB
Volume: 195
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)85612-e

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✦ Synopsis

The triplet states of C6,, and C,,, (fullerenes) in solid phase at 3 and 77 K are detected by the time-resolved EPR technique. The observed time-resolved EPR spectra and the time profiles of the transient signals indicate that the geometries of Cw and CT0 are distorted from the soccerball geometry (I,, symmetry) and DSh symmetry, respectively, in the excited states. Remarkable time dependences of the signals observed at 3 and 77 K are analyzed in terms of the anisotropic sublevel decay rates (3 K) and of the anisotropic spin-lattice relaxation rates (77 K).

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