Matrix isolation of intermediates on the activated silica surface: mechanisms and efficiencies of photochemical reactions of peroxy radicals

被引：5

作者：

Mel'nikov, M ^{[1
]}

Pergushov, VI ^{[1
]}

Osokina, N ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2000年 / 56卷 / 13期

关键词：

activated silica surface; peroxy radicals; photodissociation; mechanisms; efficiency;

D O I：

10.1016/S1386-1425(00)00361-9

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The technique of matrix isolation on the activated silica surface for the study of mechanisms and determination of efficiencies of photochemical reactions of alkylperoxy radicals has been used. The direct experimental evidence for photochemical dissociation of peroxy radicals via two parallel pathways by the rupture of O-O and C-O bonds under light of wavelength 313 nm has been obtained. It has been found that activated silica surface is not "inert" support in studies of transformations of surface-grafted peroxy radicals. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：2517 / 2525

页数：9

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