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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Coupled Cluster/Molecular Mechanics Method: Implementation and Application to Liquid Water
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Coupled Cluster/Molecular Mechanics Method: Implementation and Application to Liquid Water

机译:团簇/分子力学耦合方法:液态水的实现与应用

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In this paper, we present theory and implementation of the first method which combines coupled cluster and molecular mechanics (CC/MM) theory. By introducing the interactions between the solute (QM) and the solvent (MM) molecules into a coupled cluster Lagrangian, we calculate interaction and solvation energies of condensed phase molecules. Also, we derive a hierarchy in the coupling between the two subsystems and thereby study the importance of including the solvent polarization directly into the optimization conditions of the solute wave function for calculation of energies. The method is tested on the water dimer. Furthermore, calculations of the interaction and solvation energies of liquid water are presented.
机译:在本文中,我们介绍了第一种方法的理论和实现,该方法结合了簇和分子力学(CC / MM)理论。通过将溶质(QM)和溶剂(MM)分子之间的相互作用引入耦合的拉格朗日簇中,我们计算了凝聚相分子的相互作用和溶剂化能。同样,我们推导了两个子系统之间耦合的层次结构,从而研究了将溶剂极化直接包含在溶质波函数的优化条件中以进行能量计算的重要性。该方法在水二聚体上进行了测试。此外,提出了液态水的相互作用和溶剂化能的计算。

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