Reactions of oxygenated radicals in the gas phase. Part 9.—Self-reactions of isopropylperoxy radicals
作者:Leslie T. Cowley、David J. Waddington、Allan Wooley
DOI:10.1039/f19827802535
日期:——
acetaldehyde, formaldehyde, methyl alcohol and cis-2,2′-azopropane. The reaction mechanism has been simulated in detail, and, in conjunction with results obtained earlier for the overall self-reaction of isopropylperoxy radicals, the following rate data have been obtained for the reactions 2(CH3)2CHO2·→(CH3)2CHOH +(CH3)2CO + O2(3a), 2(CH3)2CHO2·→ 2(CH3)2CHO·+ O2(3b)k3b/k3a increases with temperature, from
反式-2,2'-偶氮丙烷在333至373 K之间进行光氧化的主要产物是丙酮,异丙醇,异丙基氢过氧化物,乙醛,甲醛,甲醇和顺-2,2'-偶氮丙烷。已详细模拟了反应机理,并结合先前获得的异丙基过氧自由基整体自反应的结果,获得了反应2(CH 3)2 CHO 2 ·→(CH 3)2 CHOH +(CH 3)2 CO + O 2(3 a),2(CH 3)2 CHO 2·→2(CH 3)2 CHO·+ O 2(3 b)k 3 b / k 3 a随着温度的升高而增加,从302 K时的1.39±0.04增加到333 K时的1.83±0.04和373 K时的2.80±0.08。的值阿3一和阿3 b 2.44±0.31×10 7 1.38±0.26×10 9分米3摩尔-1小号-1和Ë 3一和ë 3 b 12.0±1.0和21.3±1.5千焦耳摩尔- 1个 被确定。