A TIME-RESOLVED ELECTRON-NUCLEAR DOUBLE-RESONANCE (ENDOR) STUDY OF THE PHOTO-EXCITED TRIPLET-STATE

Authors
OHKOSHI S YAMAUCHI S OHBA Y IWAIZUMI M
Citation
S. Ohkoshi et al., A TIME-RESOLVED ELECTRON-NUCLEAR DOUBLE-RESONANCE (ENDOR) STUDY OF THE PHOTO-EXCITED TRIPLET-STATE, Chemical physics letters, 224(3-4), 1994, pp. 313-318
Citations number
27
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
224
Issue
3-4
Year of publication
1994
Pages
313 - 318
Database
ISI
SICI code
0009-2614(1994)224:3-4<313:ATED(S>2.0.ZU;2-K
Abstract
A time-resolved ENDOR (TRENDOR) apparatus was constructed and applied to observe hyperfine couplings in the photoexcited triplet (T1) state. The TRENDOR spectra of the T1 states were observed both in mixed crys tals and glass. The hyperfine coupling constants were obtained at 4-10 0 K for quinoxaline in single crystals of durene and p-dibromobenzene and for tetraphenylporphine (H2TPP) in toluene glass. The time profile of the ENDOR signal was analyzed with population kinetics using a fou r-level system.