| 高温水中多产物反应模型的构建及机理研究 |
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| 引用本文： | 王志忠,王媛媛,常永娟,戴立益.高温水中多产物反应模型的构建及机理研究[J].化学学报,2011,69(18):2191-2195. |
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| 作者姓名： | 王志忠 王媛媛 常永娟 戴立益 |
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| 作者单位： | (华东师范大学化学系 上海市绿色化学与化工过程绿色化重点实验室 上海 200062) |
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| 基金项目： | 国家自然科学基金(Nos.21073064,21003049)资助项目 |
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| 摘 要： | 建立了高温水中的反应模型并采用密度泛函理论(DFT)对香叶醇在高温水中的反应路径进行了研究. 通过前线轨道分析确定了反应的可能性. 高温水中香叶醇的反应路径与常温水中不同, 从常态下的酸催化反应路径转变为高温水状态下的酸碱共催化路径, 计算所得反应能垒为205.8 kJ/mol. 分别计算分析了高温水环境和周围水分子对反应能垒的影响, 结果表明, 高温水对反应物零点能的影响最大为0.966 kJ/mol, 水分子个数的影响最大可达94.7 kJ/mol. 官能团周围水分子个数变化对反应所产生的的影响大于高温水环境的影响.
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| 关 键 词： | 高温水 香叶醇 密度泛函理论 模型 机理 |
Multiproduct Reactions in High Temperature Water:Model Building and Mechanism Investigation |
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| Wang,Zhizhong Wang,Yuanyuan Chang,Yongjuan Dai,Liyi.Multiproduct Reactions in High Temperature Water:Model Building and Mechanism Investigation[J].Acta Chimica Sinica,2011,69(18):2191-2195. |
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| Authors: | Wang Zhizhong Wang Yuanyuan Chang Yongjuan Dai Liyi |
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| Institution: | (Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, Shanghai 200062) |
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| Abstract: | Multiproduct reactions of geraniol with H3O+and(H2O)6 model in high temperature water(HTW) have been investigated by the use of density functional theory calculations.A model considering both HTW ambient and water molecular is built to investigate the reaction and the results show that the reac-tion is total acid-base catalyzed in high temperature.The two influence factors have been investigated sepa-rately.The energy barrier of this reaction is 205.8 kJ/mol.The results show that the local water number has ... |
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| Keywords: | high temperature water geraniol density functional theory model mechanism |
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