Reactions of Neutral Gas-Phase Yttrium Atoms with Two Cyclohexadiene Isomers

被引：4

作者：

Schroden, Jonathan J. ^{[1
]}

Davis, H. Floyd ^{[1
]}

机构：

[1] Cornell Univ, Dept Chem & Chem Biol, Ithaca, NY 14853 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2012年 / 116卷 / 14期

基金：

美国国家科学基金会;

关键词：

TRANSITION-METAL ATOMS; C-H BOND; EXCHANGE-REACTIONS; MOLECULAR-BEAM; CROSSED BEAMS; KINETICS; HYDROCARBONS; ACTIVATION; REACTIVITY; COMPLEXES;

D O I：

10.1021/jp211752a

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 reactions of neutral ground-state yttrium (Y) atoms with 1,3- and 1,4-cyclohexadiene (CHD) were studied using crossed molecular beams. Formation of YC6H6 + H-2 and YH2 + C6H6 was observed for both isomers at collision energies (E-coll) of 31.3 and 13.0 kcal/mol. Measured product branching ratios at E-coll = 31.3 kcal/mol indicated that YH2 + C6H6 was the dominant channel, accounting for > 97% of the products. An additional minor product channel, YC4H4 + C2H4, was observed for 1,3-CHD at the higher E-coll. The reaction threshold for YC4H4 formation was determined to be 29.5 +/- 2.0 kcal/mol based on fits to the data.

引用

页码：3508 / 3513

页数：6

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