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首页> 外文期刊>The Journal of Chemical Physics >REACTION DYNAMICS OF O(D-1) WITH HCN(0 0(0) V(3))
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REACTION DYNAMICS OF O(D-1) WITH HCN(0 0(0) V(3))

机译：O（D-1）与HCN（0 0（0）V（3））的反应动力学

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摘要

The quantum state resolved reaction dynamics of HCN(O O-0 upsilon(3)) with O(D-1) atoms were investigated by analyzing the complete product state distributions of OH(X (2) Pi(Omega), upsilon, J) and CN(X (2) Sigma(+), upsilon, J) using laser induced fluorescence (LIF). The influence of the CH-stretching mode on the reaction dynamics and different branching ratios was inspected by exciting HCN to its first overtone band of the upsilon(3) CH stretch in the 1.5 mu m region. The oxygen atom in the D-1 state was generated in a laser photolysis of ozone at a wavelength of 266 nm. The measured rotational and vibrational distributions of the products were compared with statistical results from phase space theory (PST). Nearly statistical rotational and vibrational distributions are obtained for CN(X (2) Sigma(+)) in upsilon=0-3. The rotational and vibrational distributions of OH(X (2) Pi(Omega)) are colder than statistically expected. Insertion of O into the CN bond with subsequent hydrogen migration seems to be a better characterization of the the reaction mechanism than an insertion of the oxygen atom into the CH bond. Direct abstraction of hydrogen to form OH is improbable to describe the molecular process. (C) 1995 American Institute of Physics. [References: 29]
机译：通过分析OH（X（2）Pi（Omega），upsilon，J的完整产物态分布，研究了HCN（O-0 Osilupsilon（3））与O（D-1）原子的量子态分解反应动力学。 ）和CN（X（2）Sigma（+），upsilon，J）使用激光诱导荧光（LIF）。通过将HCN激发到upsilon（3）CH拉伸的1.5微米区域的第一个泛音带，检查了CH拉伸模式对反应动力学和不同支化比的影响。在臭氧的激光光解中，在266 nm的波长下生成D-1状态的氧原子。将产品测得的旋转和振动分布与相空间理论（PST）的统计结果进行比较。在upsilon = 0-3中获得了CN（X（2）Sigma（+））的近乎统计的旋转和振动分布。 OH（X（2）Pi（Omega））的旋转和振动分布比统计上的预期要冷。与将氧原子插入CH键相比，将O插入CN键并随后进行氢迁移似乎是反应机理的更好表征。直接提取氢形成OH不可能描述分子过程。 （C）1995年美国物理研究所。 [参考：29]

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