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理论研究H2S与羟基和Cl在没有水分子和有水分子条件下的反应机理
引用本文:毛文雪,隆正文.理论研究H2S与羟基和Cl在没有水分子和有水分子条件下的反应机理[J].贵州大学学报(自然科学版),2011,28(6):22-25.
作者姓名:毛文雪  隆正文
作者单位:贵州大学理学院,贵州贵阳,550025
基金项目:国家自然科学基金(41165007)
摘    要:本文用量子化学计算方法研究没有水分子和有水分子条件下对Cl+H2S和OH+H2S这两个反应产生的影响.在wb97xd/aug-cc-pvtz水平下的计算结果表明,单个水分子加到反应中会使Cl+H2S和OH+H2S这两个反应的能垒分别减小3.0kal/mol和2.2kal/mol.同时两个反应的速率常数在水分子影响下也分...

关 键 词:水分子  H2S  Cl  羟基

Theoretical Study on Reaction Mechanism of H2S with Hydroxide Radical and Cl in the Absence and Presence of Water Molecule
MAO Wen-xue , LONG Zheng-wen.Theoretical Study on Reaction Mechanism of H2S with Hydroxide Radical and Cl in the Absence and Presence of Water Molecule[J].Journal of Guizhou University(Natural Science),2011,28(6):22-25.
Authors:MAO Wen-xue  LONG Zheng-wen
Institution:* (College of Sciences,Guizhou University,Guiyang 550025,China)
Abstract:The quantum chemical calculations were applied to study the two reactions of Cl+H2S and OH+H2S without water and with a single water molecule.The computed results predict that the activated barriers for two reactions of Cl+H2S and OH+H2S are reduced by 4.3 kal/mol and 3.6 kal/mol respectively.In addition,the calculated results show that the rate constant are increased by 2.5×10-9cm3 molecule-1s-1 and increased 5.18×10-12cm3 molecule-1s-1,respectively.The calculation results agree well with theoretical value of literature.Thus,the calculations show that the single water would play a catalytic role in the reaction of Cl+H2S,but produce negative influence to the reaction of OH+H2S.
Keywords:water molecule  H2S  Cl  hydroxide radical
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