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不饱和类硅烯H2C=SiNaF的DFT研究
引用本文:李文佐,宫宝安,程建波.不饱和类硅烯H2C=SiNaF的DFT研究[J].物理化学学报,2006,22(6):653-656.
作者姓名:李文佐  宫宝安  程建波
作者单位:Science and Engineering College of Chemistry and Biology, Yantai University, Yantai 264005, P. R. China; Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130012, P. R. China
基金项目:国家自然科学基金(20473029),烟台大学博士科研启动基金(HY05B30),吉林大学超分子结构与材料教育部重点实验室开放课题资助项目
摘    要:用密度泛函理论方法, 在B3LYP/6-31+G(d, p)水平上研究了不饱和类硅烯H2C=SiNaF的结构. 结果表明, 不饱和类硅烯H2C=SiNaF共有四种平衡构型, 其中非平面的p-配合物型构型能量最低, 是不饱和类硅烯H2C=SiNaF存在的主要构型. 对平衡构型间异构化反应的过渡态进行了计算, 求得了转化势垒. 计算预言了最稳定构型的振动频率和红外强度.

关 键 词:不饱和类硅烯H2C=SiNaF  DFT  异构化  
收稿时间:2005-10-26
修稿时间:2005-12-16

DFT Study on the Unsaturated Silylenoid H2C=SiNaF
LI,Wen-Zuo,GONG,Bao-An,CHENG,Jian-Bo.DFT Study on the Unsaturated Silylenoid H2C=SiNaF[J].Acta Physico-Chimica Sinica,2006,22(6):653-656.
Authors:LI  Wen-Zuo  GONG  Bao-An  CHENG  Jian-Bo
Institution:Science and Engineering College of Chemistry and Biology, Yantai University, Yantai 264005, P. R. China; Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130012, P. R. China
Abstract:The unsaturated silylenoid H2C=SiNaF was studied by using the DFT B3LYP method in conjunction with the 6-31 G(d, p) basis set. Geometry optimization calculations indicate that H2C=SiNaF has four equilibrium configurations, in which the p-complex has the lowest energy and is the most stable structure. Three transition states for isomerization reactions of H2C=SiNaF are located and the energy barriers are calculated. For the most stable one, vibrational frequencies and infrared intensities have been predicted.
Keywords:Unsaturated silylenoid H2C=SiNaF  DFT  Isomerization
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