自然科学版
陕西师范大学学报(自然科学版)
化学与材料科学
CH2XO(X=Cl, Br)自消去反应机理的理论研究
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谢鹏涛*, 毕慧敏, 李超群
(邯郸学院 化学化工与材料学院, 河北 邯郸 056005)
谢鹏涛,男,讲师。E-mail: hdxyxpt@163.com
摘要:
采用B3LYP方法6-311++G(d,p)基组,研究了CH2XO(X=Cl、Br)自由基自消去反应的机理,找出了8条反应通道,其中生成HC(O)+HCl的通道和HCHO+Br的通道为主反应通道。通过波函数分析方法,探讨了反应过程中化学键的变化规律,为大气化学中CH2XO(X=Cl、Br)的实验研究提供理论依据。
关键词:
甲基卤氧自由基; 反应机理; 波函数分析; 键级
收稿日期:
2017-02-15
中图分类号:
O641.12
文献标识码:
A
文章编号:
1672-4291(2017)05-0060-06
基金项目:
河北省自然科学基金(B2016109022)
Doi:
Theoretical studies on the elimination reaction of CH2XO(X=Cl, Br)
XIE Pengtao*, BI Huimin, LI Chaoqun
(The College of Chemical Engineering and Materials, Handan University, Handan 056005, Hebei, China)
Abstract:
The elimination reaction mechanism of CH2XO(X=Cl、Br) radicals was investigated by using B3LYP methods with the 6-311++G(d, p) basis sets. Eight reaction channels were found. The reaction channels that products were HC(O)+HCl and HCHO+Br were the domain channels, which were well consistent with the experimental results. From the view of wavefunction analysis, the changes of chemical bonds in the reactions have been discussed. The calculation results would be helpful for the further experimental study of the atmospheric chemistry.
KeyWords:
CH2XO(X=Cl, Br)radical; reaction mechanism; wavefunction analysis;bond order