SPECTRUM AND MUTUAL KINETICS OF HOCH2CH2O2 RADICALS

被引：24

作者：

ANASTASI, C ^{[1
]}

MUIR, DJ ^{[1
]}

SIMPSON, VJ ^{[1
]}

PAGSBERG, P ^{[1
]}

机构：

[1] RISO NATL LAB,DEPT ENVIRONM SCI & TECHNOL,DK-4000 ROSKILDE,DENMARK

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 15期

关键词：

D O I：

10.1021/j100168a016

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：

Beta-Hydroxyethyl peroxy radicals have been studied by using pulse radiolysis to generate the radicals and kinetic absorption to monitor their formation and decay. The ultraviolet absorption spectrum assigned to HOCH2CH2O2 is broadband in nature with a maximum absorption cross section of 3.5 (+/- 0.6) x 10(-18) cm2 molecule-1 at 230 nm. An overall rate constant for the self-reaction 2HOCH2CH2O2 --> HOCH2CH2OH + HOCH2CHO + O2 (3a), 2HOCH2CH2O2 --> 2HOCH2CH2O + O2 (3b) of k3 = 7.7 (+/- 1.2) x 10(-12) cm3 molecule-1 s-1 was measured at room temperature together with an estimation of the branching ratio, k3a/k3 = 0.75 (+/- 0.1).

引用

页码：5791 / 5797

页数：7

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