KINETICS OF NCO PLUS HYDROCARBON REACTIONS

被引：26

作者：

PARK, J ^{[1
]}

HERSHBERGER, JF ^{[1
]}

机构：

[1] N DAKOTA STATE UNIV,DEPT CHEM,FARGO,ND 58105

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 218卷 / 5-6期

关键词：

D O I：

10.1016/0009-2614(94)00037-9

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 NCO reactions with hydrocarbon molecules were investigated using time-resolved infrared diode laser absorption spectroscopy. NCO was probed at 1905.6 cm-1, and HNCO reaction products were probed at 2280.1 cm-1. Rate constants at 296 K were measured to be <1.0x10(-14), (7.04+/-1.20)x10(-14), (2.29+/-0.13)x10(-13), (6.13+/-0.32)x10(-13), (8.7 8+/-0.42)x10(-13), (7.47+/-0.8)x10(-14), and (2.85+/-0.22)x10(-12) cm3 molecule-1 s-1, for CH4, C2H6, C3H8, n-C4H10, n-C5H,2., C2H2, and C2H4, respectively. Hydrogen abstraction to form HNCO was observed to be a major product channel for reactions with alkanes and for C2H2. For C2H2, HNCO is formed in negligible yield, indicating that addition-elimination is the primary mechanism active.

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页码：537 / 543

页数：7

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