PRECULIAR SPIN DYNAMICS OF THE PHOTOEXCITED TRIPLET-STATE OF PENTACENE IN A BENZOIC-ACID CRYSTAL - AN ESE STUDY

Authors
ONG JL SLOOP DJ LIN TS
Citation
Jl. Ong et al., PRECULIAR SPIN DYNAMICS OF THE PHOTOEXCITED TRIPLET-STATE OF PENTACENE IN A BENZOIC-ACID CRYSTAL - AN ESE STUDY, Applied magnetic resonance, 6(3), 1994, pp. 359-371
Citations number
16
Categorie Soggetti
Spectroscopy,"Physics, Atomic, Molecular & Chemical
Journal title
Applied magnetic resonance → ACNP
ISSN journal
09379347
Volume
6
Issue
3
Year of publication
1994
Pages
359 - 371
Database
ISI
SICI code
0937-9347(1994)6:3<359:PSDOTP>2.0.ZU;2-T
Abstract
The spin dynamics of the photoexcited triplet state of pentacene in th ree host crystals: benzoic acid, naphthalene and p-terphenyl, were mea sured from 5 to 300 K by the electron spin echo technique following N2 laser excitation. The triplet kinetics (population, spin-lattice rela xation and decay rates) of pentacene in the benzoic acid (BA) hosts di ffer from those observed in the other two host systems. A model which includes a strong guest-host interaction and proton tunneling in the t automerization of BA hosts is used to explain the observations.