| 二氯亚甲基锗烯与乙烯环加成反应机理的理论研究 |
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| 引用本文： | 卢秀慧,徐曰华,于海彬,林璜. 二氯亚甲基锗烯与乙烯环加成反应机理的理论研究[J]. 中国化学, 2005, 24(10): 1339-1342. DOI: 10.1002/cjoc.200591339 |
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| 作者姓名： | 卢秀慧 徐曰华 于海彬 林璜 |
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| 作者单位： | [1]School of Chemistry and Chemical Engineering, Jinan University, Jinan, Shandong 250022, China |
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| 基金项目： | Project supported by the Natural Science Foundation of Shandong Province of China （No. Y2002B07）. |
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| 摘 要： | The mechanism of a cycloaddition reaction between singlet dichloromethylene germylene and ethylene has been investigated with B3LYP/6-31G＊ method, including geometry optimization and vibrational analysis for the involved stationary points on the potential energy surface. Energies for the involved conformations were calculated by CCSD（T）//B3LYP/6-31G＊ method. On the basis of the surface energy profile obtained with CCSD（T）// B3LYP/6-31G＊ method for the cycloaddition reaction between singlet dichloromethylene germylene and ethylene, it can be predicted that the dominant reaction pathway is that an intermediate INT1 is firstly formed between the two reactants through a barrier-free exothermic reaction of 61.7 kJ/mol, and the intermediate INT1 then isomerizes to an active four-membered ring product P2.1 via a transition state TS2, an intermediate INT2 and a transition state TS2.1, in which energy barriers are 57.7 and 42.2 kJ/mol, respectively.
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| 关 键 词： | 环状化合物 合成方法 乙烯 二氯基 环加成 |
| 收稿时间： | 2004-11-16 |
| 修稿时间： | 2004-11-162005-06-02 |
Theoretical Study on the Mechanism of the Cycloaddition Reaction between Dichloromethylene Germylene and Ethylene |
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| Lu XiuHui;Xu YueHua;Yu HaiBin;Lin Huang. Theoretical Study on the Mechanism of the Cycloaddition Reaction between Dichloromethylene Germylene and Ethylene[J]. Chinese Journal of Chemistry, 2005, 24(10): 1339-1342. DOI: 10.1002/cjoc.200591339 |
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| Authors: | Lu XiuHui Xu YueHua Yu HaiBin Lin Huang |
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| Abstract: | The mechanism of a cycloaddition reaction between singlet dichloromethylene germylene and ethylene has been investigated with B3LYP/6‐31G* method, including geometry optimization and vibrational analysis for the involved stationary points on the potential energy surface. Energies for the involved conformations were calculated by CCSD(T)//B3LYP/6‐31G* method. On the basis of the surface energy profile obtained with CCSD(T)// B3LYP/6‐31G* method for the cycloaddition reaction between singlet dichloromethylene germylene and ethylene, it can be predicted that the dominant reaction pathway is that an intermediate INT1 is firstly formed between the two reactants through a barrier‐free exothermic reaction of 61.7 kJ/mol, and the intermediate INT1 then isomerizes to an active four‐membered ring product P2.1 via a transition state TS2 , an intermediate INT2 and a transition state TS2.1 , in which energy barriers are 57.7 and 42.2 kJ/mol, respectively. |
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| Keywords: | dichloromethylene germylene cycloaddition reaction potential energy surface density functional theory |
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