Rate constants for the reactions of CN with C6–C8 unsaturated hydrocarbons: the relations between the reaction rates and the molecular lengths
作者:Tomoki Ochimizu、Kanekazu Seki、Mikio Yagi、Joshua B. Halpern、Hideo Okabe
DOI:10.1016/s0009-2614(99)00962-8
日期:1999.11
Rates of CN reactions with 1,3,5-hexatriene and three octadiynes have been measured at various sample pressures using laser-induced fluorescence of the CN radical. The rate constants are, in units of cm3 molecule−1 s−1, k1,3,5-hexatriene=(6.7±0.2)×10−10, k1,7-octadiyne=(3.5±0.3)×10−10, k2,6-octadiyne=(2.4±0.3)×10−10 and k3,5-octadiyne=(2.5±0.3)×10−10, respectively. It shows clearly that two factors
已经使用激光诱导的CN自由基荧光在各种样品压力下测量了CN与1,3,5-己三烯和三个辛二炔的反应速率。速率常数以cm 3分子-1 s -1为单位,k 1,3,5-己三烯=(6.7±0.2)×10 -10,k 1,7-辛二炔=(3.5±0.3)×10 -10,k 2,6-辛二炔=(2.4±0.3)×10 -10和k 3,5-辛二炔=(2.5±0.3)×10 -10, 分别。清楚地表明,影响CN与不饱和烃反应速率的两个因素很重要。一个是π共轭体系的长度,另一个是CN插入后消除过程之间的差异。