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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Silsesquioxane dendrimers as catalysts:A bite-sized molecular dynamics study
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Silsesquioxane dendrimers as catalysts:A bite-sized molecular dynamics study

机译:倍半硅氧烷树状大分子作为催化剂:一口大小的分子动力学研究

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摘要

A method of calculating the bite(P-M-P)angle for dendritic ligands is reported.Diphenylphosphine terminated dendritic ligands were modified with either a single rhodium or a rhodium complex[HRh(CO)2]and molecular dynamics techniques used to run simulations to determine the dynamic bite angle(beta_d)as a time averaged property.The effects of changing the composition of the dendritic branches is investigated and comparison with experimental hydroformylation data reveals that the dendrimer with the highest linear:branched ratio also has a dynamic bite angle closest to the theoretical ideal value of 120°.
机译:报道了一种计算树枝状配体咬角的方法。用单个铑或铑配合物[HRh(CO)2]修饰二苯膦封端的树枝状配体,并使用分子动力学技术进行模拟以确定动力学研究了改变树枝状支链组成的影响,并将其与实验的加氢甲酰化数据进行比较,发现具有最高线性:支化比的树枝状聚合物的动态咬合角也最接近理论值。理想值为120°。

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