GAS-PHASE THERMOCHEMISTRY OF VH AND CRH

被引：45
|
作者：
CHEN, YM
CLEMMER, DE
ARMENTROUT, PB
机构：
[1] Department of Chemistry, University of Utah, Salt Lake City
来源：
JOURNAL OF CHEMICAL PHYSICS | 1993年 / 98卷 / 06期
关键词：
D O I：
10.1063/1.464948
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 homolytic bond dissociation energies of the transition-metal neutral hydrides, D(o)(M-H) (M=V, Cr), are experimentally determined by using guided ion beam tandem mass spectrometry to measure the kinetic energy dependence of the endothermic hydride abstraction reactions of M+ with mono-, di-, and trimethylamine. From the thresholds of these reactions, we derive the 0 K values of D(o)(V-H)=2.13+/-0.07 eV and D(o)(Cr-H)=1.93+/-0.07 eV. This thermochemistry is compared with theoretical values and previous experimental results.
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页码：4929 / 4936
页数：8
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