A pulse radiolysis study of H atom reactions with aliphatic alcohols: evaluation of kinetics by direct optical absorption measurement

被引:28
作者
Alam, MS [1 ]
Rao, BSM [1 ]
Janata, E [1 ]
机构
[1] Hahn Meitner Inst Kernforsch Berlin GmbH, Bereich Solarenergieforsch, D-14109 Berlin, Germany
关键词
D O I
10.1039/b101385h
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 kinetics of the reactions of hydrogen atoms with aliphatic alcohols in aqueous solution were studied by pulse radiolysis. The rate constants for the reaction of hydrogen atoms with methanol, ethanol, 2-propanol and tert-butyl alcohol were determined from the increase in optical absorption in the UV region to be 1.1x10(6), 1.75x10(7), 5.3x10(7) and 2.3x10(5) d mol(-1) s(-1), respectively. The bimolecular decay rate constants of the first two alcohol radicals were evaluated to be 2.4x10(9) and 1.5x10(9) d mol(-1) s(-1).
引用
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页码:2622 / 2624
页数:3
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