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多双氢键N(C)―H…H―B体系的理论研究

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摘要 在DFT-B3LYP/6-311++G**水平上求得C4H4NH…BH4-和CH≡CH…BH4-红移多双氢键复合物势能面上的稳定构型.经MP2/6-311++G**水平的计算,单体间含基组重叠误差BSSE校正的多双氢键相互作用能分别为-76.62和-33.79kJ.mol-1.通过自然键轨道(NBO)理论,详细分析了两种复合物中轨道间的相互作用,电荷转移,原子杂化重优及相关键键长变化的本质等.另外,在Onsager模型下,考察了具有不同相对介电常数(ε)的溶剂的溶剂化效应对单体及复合物的结构、振动频率和相互作用能的影响.
出处 《科学通报》 EI CAS CSCD 北大核心 2008年第19期2278-2285,共8页 Chinese Science Bulletin
基金 甘肃省教育厅研究生导师科研基金资助项目(批准号:07-08-12)
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