FORMATION OF HIGH-SPIN COMPLEXES IN REACTIONS OF OXIDES OF THE GAMMA-AL2O3 TYPE WITH RADICAL PAIRS OF STERICALLY SHIELDED SEMIQUINONES - A NEW PROCEDURE FOR THE PREPARATION OF ORGANOMETALLIC POLYRADICALS AND THEIR ESR-SPECTRA

Authors
VOROBEVA GA CHEMERISOV SD KOZINTSEV AV LEBEDEV YS
Citation
Ga. Vorobeva et al., FORMATION OF HIGH-SPIN COMPLEXES IN REACTIONS OF OXIDES OF THE GAMMA-AL2O3 TYPE WITH RADICAL PAIRS OF STERICALLY SHIELDED SEMIQUINONES - A NEW PROCEDURE FOR THE PREPARATION OF ORGANOMETALLIC POLYRADICALS AND THEIR ESR-SPECTRA, Russian chemical bulletin, 46(2), 1997, pp. 284-288
Citations number
14
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
46
Issue
2
Year of publication
1997
Pages
284 - 288
Database
ISI
SICI code
1066-5285(1997)46:2<284:FOHCIR>2.0.ZU;2-H
Abstract
a new simple method was developed for the preparation of organometalli c bi- and triradicals by the heterogeneous reaction of gamma-Al2O3 or analogous oxides with free radicals generated in solution through the interaction Of 3,6-di-tert-butyl-o-benzoquinone with 3,6-di-tert-butyl pyrocatechol. An explanation was offered for the plus sign of the dipo le-dipole coupling constant observed previously in the ESR spectra rec orded in a superstrong field at low temperatures.