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Steric Effects in the Cl+CHD3(v1=1) Reaction (cited: 2)
Fengyan Wang*,Kopin Liu*
Author NameAffiliationE-mail
Fengyan Wang* Institute of Atomic and Molecular Sciences, Academia Sinica, P. O. Box 23-166, Taipei 10617, TaiwanDepartment of Chemistry, Fudan University, Shanghai 200433, China fengyanwang@fudan.edu.cn 
Kopin Liu* Institute of Atomic and Molecular Sciences, Academia Sinica, P. O. Box 23-166, Taipei 10617, Taiwan kliu@po.iams.sinica.edu.tw 
Abstract:
A recent study has revealed a full 3-dimentional reactive scattering picture of the reaction Cl+CHD3(v1=1) as the Cl atoms attack CHD3 from various directions respective to the C-H stretching bond. The reported polarization-dependent differential cross sections provide the most detailed characterization of the influences of reagent alignments on reactivity. To convey the stereo-specific information more accessible to general chemists, we show here, by proper symmetry considerations, how to retrieve from the measurements the relative integral and differential cross sections of two most common collision geometries: the end-on versus side-on attacks. The results, albeit coarse-grained, provide an appealing picture that not only reinforces our intuition about chemical reactivity, but also sheds more light on the conventional (unpolarized) attributes
Key words:  Steric effect, Integrate cross section, Cylindrical symmetry, Slice image, Crossed beam technique
FundProject:
Cl+CHD3(v1=1)的立体化学反应研究 (cited: 2)
王凤燕*,刘国平*
摘要:
最近报道了氯原子从不同方向进攻CHD3分子的C-H化学键的全方位三维立体化学反应过程,其中通过对偏振相关微分反应截面的测量以及分析,反应物的空间取向对化学反应的影响有了比较清晰的了解.这里,在切片成像满足特定的对称性要求的条件下,通过对两种最常见的反应构型即平行碰撞以及垂直碰撞反应构型的分析,得到三维微分反应截面以及积分反应截面,这两种立体化学反应活性的比较对于理解各向同性的反应物的反应活性有着较大的帮助,也是一般化学家更为感兴趣的课题,从而可以加深关于化学反应过程的直观认识以及探讨
关键词:  化学立体效应,积分反应截面,轴对称,离子切片成像,交叉分子束技术
DOI:10.1063/1674-0068/26/06/705-709
分类号: