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unknown
化学反应的价键理论研究
Authors
吴玮
张乾二
曹泽星
Publication date
15 February 1999
Publisher
Abstract
根据价键波函数的对称性及基态、激发态化学键与键表的对应 ,可以把轨道对称守恒原理和键对称规律表述成“价键结构对称性匹配” .价键结构对称规则通过对反应物和产物的价键结构进行对称性分析 ,可以直接预测化学反应活性 ,无需依赖理论计算结果 .在价键结构对称性分析的基础上 ,应用多VB结构计算方法 ,建立了反应H +HLi→H2 +Li和H +LiH→HLiH(cyclic)→HLi+H的曲线交叉VB图 ,讨论了能垒及过渡态的形成机制 .计算结果表明 ,H原子交换反应H +LiH HLi+H是一个两步过程
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Last time updated on 16/06/2016