ESR AND ENDOR SPECTRA OF PARAMAGNETIC-COMPLEXES OF QUINONES WITH LEWIS ACID CENTERS IN THERMALLY ACTIVATED Y-TYPE ZEOLITES

被引：2

作者：

ASTASHKIN, AV

SAMOILOVA, RI

机构：

[1] Institute of Chemical Kinetics and Combustion, Novosibirsk

来源：

ZEOLITES | 1991年 / 11卷 / 03期

关键词：

ESR; ENDOR; QUINONES; RADICAL CATIONS; LEWIS SITES;

D O I：

10.1016/S0144-2449(05)80233-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

With the aid of e.s.r. and ENDOR spectroscopies, it is shown that the paramagnetic particles arising from adsorption of p-benzoquinone, chloranil, and fluoranil on thermally activated HY zeolite are, probably, the radical cations forming donor-acceptor complexes with Lewis acid sites. These quinones are believed to be useful as indicators in studies of redox active sites of solid acid catalysts.

引用

页码：282 / 286

页数：5

共 21 条

[1]

ABAKUMOV GA, 1971, IZV AKAD NAUK SSSR K, V8, P1827

[2]

ABAKUMOV GA, 1972, IZV AKAD NAUK SSSR K, V5, P1199

[3]

BENESI HA, 1978, ADV CATAL, V27, P97

[4] ENDOR OF PERYLENE RADICALS ADSORBED ON ALUMINA AND SILICA-ALUMINA POWDERS .1. THE RING PROTONS [J].