PRODUCT YIELD-DETECTED ESR STUDIES OF PHOTOCHEMICAL-REACTION OF A BIFUNCTIONAL CHAIN MOLECULE - MAGNETIC-FIELD AND MICROWAVE EFFECTS

Authors
MUKAI M FUJIWARA Y TANIMOTO Y KONISHI Y OKAZAKI M
Citation
M. Mukai et al., PRODUCT YIELD-DETECTED ESR STUDIES OF PHOTOCHEMICAL-REACTION OF A BIFUNCTIONAL CHAIN MOLECULE - MAGNETIC-FIELD AND MICROWAVE EFFECTS, Zeitschrift für physikalische Chemie, 180, 1993, pp. 223-233
Citations number
40
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift für physikalische Chemie → ACNP
ISSN journal
09429352
Volume
180
Year of publication
1993
Part
1-2
Pages
223 - 233
Database
ISI
SICI code
0942-9352(1993)180:<223:PYESOP>2.0.ZU;2-V
Abstract
The transient biradical generated from the photochemical reaction of a xanthone-xanthene bifunctional chain molecule was observed by means o f ESR and the spin trapping techniques. The product yield (spin adduct of the biradical) increased with increasing magnetic fields (less tha n or equal to 5000 G). The yield in the magnetic fields around 3350 C was reduced by the simultaneous irradiation of microwave during photol ysis. All the results were discussed within the framework of the radic al pair model.