ELECTRON-SPIN DYNAMICS OF PHOTOEXCITED CORANNULENE-LITHIUM COMPLEXES IN TETRAHYDROFURAN - FOURIER-TRANSFORM ELECTRON-PARAMAGNETIC-RESONANCE

Authors
ZILBER G ROZENSHTEIN V CHENG PC SCOTT LT RABINOVITZ M LEVANON H
Citation
G. Zilber et al., ELECTRON-SPIN DYNAMICS OF PHOTOEXCITED CORANNULENE-LITHIUM COMPLEXES IN TETRAHYDROFURAN - FOURIER-TRANSFORM ELECTRON-PARAMAGNETIC-RESONANCE, Journal of the American Chemical Society, 117(43), 1995, pp. 10720-10725
Citations number
32
Categorie Soggetti
Chemistry
Journal title
Journal of the American Chemical Society → ACNP
ISSN journal
00027863
Volume
117
Issue
43
Year of publication
1995
Pages
10720 - 10725
Database
ISI
SICI code
0002-7863(1995)117:43<10720:EDOPCC>2.0.ZU;2-Y
Abstract
Tetrahydrofuran (THF) solutions of corannulene (Cor) reduced by lithiu m metal exhibit electron paramagnetic resonance (EPR) features that de pend on the reduction stage of Cor, the temperature, and the nuclear s pin (isotope effect). Photoexcitation of these solutions results in EP R emissive spectra, attributed to the trianion, Cor(3.-), and to the p hotoelectron, e(photo)(-). These electron spin polarized (ESP) effects are discussed within the framework of intramolecular electron transfe r reactions of ion complexes of highly charged constituents, in conjun ction with ESP mechanisms that take into account radical-triplet inter actions.