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茂金属聚乙烯催化剂结构与活性关系的分子模拟研究
引用本文:代振宇,寇拴虎,景振华,周涵,刘伟. 茂金属聚乙烯催化剂结构与活性关系的分子模拟研究[J]. 计算机与应用化学, 2003, 20(5): 653-656
作者姓名:代振宇  寇拴虎  景振华  周涵  刘伟
作者单位:石油化工科学研究院,北京,100083
基金项目:国家自然科学基金(20006008)
摘    要:利用分子模拟技术对一系列茂金属聚乙烯催化剂的结构进行了优化,计算了乙烯插入过程中不同中间态产物的能量,考察了中间态产物的构象能与茂金属聚乙烯催化剂活性之间的关系。发现两种中间态产物构象能的差与活性之间有着很好的对应关系。这一规律可帮助优化茂金属聚乙烯催化剂的结构,理性开发性能更加优良的茂金属聚乙烯催化剂。

关 键 词:茂金属 聚乙烯 催化剂 化学结构 催化活性 分子模拟 构象
文章编号:1001-4160(2003)05-653-656
修稿时间:2003-05-21

Molecular Simulation studies on the relationship between structure of metallocenes and their activities
DAI Zhen-Yu,KOU Shuan-Hu,JING Zhen-Hua,ZHOU Han,LIU Wei. Molecular Simulation studies on the relationship between structure of metallocenes and their activities[J]. Computers and Applied Chemistry, 2003, 20(5): 653-656
Authors:DAI Zhen-Yu  KOU Shuan-Hu  JING Zhen-Hua  ZHOU Han  LIU Wei
Abstract:Molecular simulation techniques were used to study the relationship between structure of metaiiocenes and their catalytic activities. Molecular mechanics and molecular dynamics methods were selected to optimize the structure of a series of metaiiocenes and calculate conformational energy of various intermediates in the process of ethylene insertion. A simple but useful orderliness has been found, which may lead to a more rational way to develop better metaiiocenes.
Keywords:metallocene   catalyst   molecular simulation   activity
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