作者:B. Maillard、K. U. Ingold、J. C. Scaiano
DOI:10.1021/ja00353a039
日期:1983.7
The kinetics of the rections of several free radicals with oxygen have been examined in solution at 300 K using laser flash photolysis techniques. The reactions of resonance-stabilized radicals are only slightly slower than those of nonstabilized radicals: for example, for tert-butyl (in cyclohexane), 4.93 x 10/sup 9/; benzyl, 2.36 x 10/sup 9/ (in cyclohexane); cyclohexadienyl (in benzene), 1.64 x
已经使用激光闪光光解技术在 300 K 的溶液中检查了几种自由基与氧反应的动力学。共振稳定自由基的反应仅比不稳定自由基的反应稍慢:例如,对于叔丁基(在环己烷中),4.93 x 10/sup 9/;苄基,2.36 x 10/sup 9/(在环己烷中);环己二烯基(在苯中),1.64 x 10/sup 9/ M/sup -1/ s/sup -1/。丁基锡 (n-Bu/sub 3/Sn.) 自由基的反应速度异常快 (7.5 x 10/sup 9/ M/sup -1/ s/sup -1/),这一事实已初步归因于由于重原子效应而放宽自旋选择规则。1张桌子。