Kinetic and mechanistic study of the self-reaction of methoxymethylperoxy radicals at room temperature
Kinetic and mechanistic study of the self-reaction of methoxymethylperoxy radicals at room temperature
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DOI：
10.1021/j100147a027
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发表时间：
1993-11
期刊：
影响因子：
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通讯作者：
M. Jenkin;G. Hayman;T. Wallington;M. D. Hurley;J. C. Ball;O. Nielsen;T. Ellermann
中科院分区：
文献类型：
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作者：
M. Jenkin;G. Hayman;T. Wallington;M. D. Hurley;J. C. Ball;O. Nielsen;T. Ellermann
用调制光解Cl 2 /CH 3 OCH 3 /O2/N2混合物和脉冲辐解SF6/CH 3 OCH 3 /O2混合物研究了CH 3 OCH 2 O2在298 K下的紫外吸收光谱和自反应动力学。在200-290 nm范围内表征的光谱与单个公布的测定结果一致。实验结果表明，CH 3 OCH 2 O2的二级去除动力学k5 obs对总压（17-760 Torr）和反应混合物组成的变化都很敏感：2CH 3 OCH 2 O2 →2CH 3 OCH 2 O+ O2（5a）; →CH 3 OCHO+CH 3 OCH 2 OH+ O2（5 b）
The UV absorption spectrum and kinetics of the self reaction of CH 3 OCH 2 O 2 at 298 K have been studied using both the modulated photolysis of Cl 2 /CH 3 OCH 3 /O 2 /N 2 mixtures and the pulse radiolysis of SF 6 /CH 3 OCH 3 /O 2 mixtures. The spectrum, characterized in the range 200-290 nm, is in good agreement with the single published determinations. The observed second-order removal kinetics of CH 3 OCH 2 O 2 , k 5obs , were found to be sensitive to both the variation of total pressure (17-760 Torr) and the composition of the reaction mixtures: 2CH 3 OCH 2 O 2 →2CH 3 OCH 2 O+O 2 (5a); →CH 3 OCHO+CH 3 OCH 2 OH+O 2 (5b)