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A time-resolved electron nuclear double resonance (ENDOR) study of the photo-excited triplet state

✍ Scribed by Shin-ichi Ohkoshi; Seigo Yamauchi; Yasunori Ohba; Masamoto Iwaizumi

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
534 KB
Volume
224
Category
Article
ISSN
0009-2614

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✦ Synopsis

A time-resolved ENDOR (TRENDOR ) apparatus was constructed and applied to observe hyperfine couplings in the photoexcited triplet (Tr ) state. The TRENDOR spectra of the Tt states were observed both in mixed crystals and glass. The hypertine coupling constants were obtained at 4-100 K for quinoxaline in single crystals of durene and pdibromobenzene and for tetraphenylporphine (HaTPP) in toluene glass. The time profile of the ENDOR signal was analyzed with population kinetics using a four-level system.

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