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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Analysis of Partition Functions for Metallocenes: Ferrocene, Ruthenocene, and Osmocene
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Analysis of Partition Functions for Metallocenes: Ferrocene, Ruthenocene, and Osmocene

机译:茂金属,二茂铁,钌茂金属和茂金属的分区功能分析

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摘要

We present a calculation of the torsional potential of the three metallocenes of the iron group, that is, ferrocene, ruthenocene, and osmocene, calculated with the GAUSSIAN program suite. Both a variational method (through computation of the exact energy levels) and our Chebyshev imaginary time propagation method are used to calculate the hindered rotation partition function, demonstrating the efficiency of the Chebyshev scheme. The transition from a semirigid through a hindered rotor to the free rotor regime is demonstrated, and the effect of the hindered rotation (as opposed to a harmonic) treatment on the thermodynamics of metallocenes is demonstrated.
机译:我们提供了使用高斯程序套件计算的铁族三个茂金属(即二茂铁,钌茂金属和茂茂金属)的扭转势的计算。变分法(通过计算精确的能级)和我们的切比雪夫虚时传播方法都用于计算受阻旋转分配函数,证明了切比雪夫方案的效率。演示了从半刚性转子到受阻转子到自由转子状态的过渡,并论证了受阻旋转(与谐波相反)处理对茂金属热力学的影响。

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