Vector correlations in the reaction O(3P)+CS(X 1Σ+)→CO(X 1Σ+)+S(3P)
Vector correlations in the reaction O(3P)+CS(X 1Σ+)→CO(X 1Σ+)+S(3P)
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DOI：
10.1063/1.466470
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发表时间：
1994-02
影响因子：
4.4
通讯作者：
Ml Costen;G. Hancock;A. Orr-Ewing;Dean Summerfield
中科院分区：
文献类型：
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作者：
Ml Costen;G. Hancock;A. Orr-Ewing;Dean Summerfield
利用NO2在355nm极化光解作用下形成的平动排列氧原子，研究了O(3P)+CS（X 1Σ+）→CO(X 1Σ+)+S（3P）反应。用亚多普勒分辨率的激光诱导荧光（LIF）检测初生CO产物，提取试剂和产物相对速度k和k′以及产物旋转角动量J′之间的对相关关系。以前的理论解释的多普勒谱的光解产物在矢量相关性方面已经扩展到双分子反应的情况下。所研究的系统被认为产生了一个接近各向同性分布的产品速度k ‘的k方向，和J ’的旋转对齐与k接近于零。CO分子离开时，其旋转角动量矢量J′优先垂直于产物相对速度k′，因此呈现负k′，J′相关。这些结果得到了准经典…
The reaction O(3P)+CS(X 1Σ+)→CO(X 1Σ+)+S(3P) has been studied using translationally aligned oxygen atoms formed from the 355 nm polarized photodissociation of NO2. The nascent CO product was detected by laser‐induced fluorescence (LIF) with sub‐Doppler resolution in order to extract the pair correlations between the reagent and product relative velocities k and k’ and the product rotational angular momentum J’. Previous theories interpreting the Doppler profiles of photodissociation products in terms of vector correlations have been extended to the case of bimolecular reactions. The system studied was seen to yield a close to isotropic distribution of product velocities k’ about the k direction, and a rotational alignment of J’ with k close to zero. The CO molecule departs with its rotational angular momentum vector J’ aligned preferentially perpendicular to the product relative velocity k’, hence exhibiting a negative k’, J’ correlation. Further insight has been gained on these results by quasiclassical ...