Reaction of carbon atoms, C (2p2, 3P) with C2H2, C2H4 and C6H6:: Overall rate constant and relative atomic hydrogen production

被引：68

作者：

Bergeat, A ^{[1
]}

Loison, JC ^{[1
]}

机构：

[1] Univ Bordeaux 1, Lab Physicochim Mol, CNRS, UMR 5803, F-33405 Talence, France

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2001年 / 3卷 / 11期

关键词：

D O I：

10.1039/b100656h

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 multichannel C+C(2)H(2), C(2)H(4) and C(6)H(6) reactions were studied, at room temperature, in a low-pressure fast-flow reactor. Carbon atoms were obtained from the reaction of CBr(4) with potassium atoms. The overall rate constants were found to be (2.4 +/-0.5)x10(-10), (2.1 +/-0.4)x10(-10) and (2.8 +/-0.8)x10(-10) cm(3) molecule(-1) s(-1), respectively. The relative atomic hydrogen productions were determined by resonance fluorescence in the vacuum ultraviolet: H (C+C(2)H(2)/C+C(2)H(4))=0.58 +/-0.04, H (C+C(6)H(6)/C+C(2)H(4))=0.17 +/-0.05, the H production from the C+C(2)H(4) reaction being the reference. The absolute H branching ratio of the C+C(2)H(4) was estimated to be 0.92 +/-0.04.

引用

页码：2038 / 2042

页数：5

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