SPATIAL-DISTRIBUTION OF FREE-RADICALS IN GAMMA-IRRADIATED ALCOHOL MATRICES DETERMINED BY THE 2+1 ELECTRON-SPIN ECHO METHOD

被引：16

作者：

KURSHEV, VV ^{[1
]}

RAITSIMRING, AM ^{[1
]}

ICHIKAWA, T ^{[1
]}

机构：

[1] ACAD SCI USSR,INST CHEM KINET & COMBUST,NOVOSIBIRSK,USSR

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 09期

关键词：

D O I：

10.1021/j100162a025

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：

The magnetic dipole-dipole interaction between hydroxyalkyl radicals in gamma-irradiated glassy matrices of alcohols has been selectively detected by means of the 2+1 electron spin echo method for determining the structure of spurs generated by gamma-irradiation at 77 K. The structure is approximately the same for all the alcohols examined. One spur consists of one radical pair with an intrapair distance distribution of exp(-r6/r(0)6) and an average distance of 5 nm. It is concluded that about 40% of the initial ion pairs recombine in the spur before being stabilized in the matrices at 77 K.

引用

页码：3564 / 3568

页数：5

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