Physical mechanisms of intermolecular interactions from symmetry-adapted perturbation theory
Physical mechanisms of intermolecular interactions from symmetry-adapted perturbation theory
复制标题
来自对称适应微扰理论的分子间相互作用的物理机制
DOI:
10.1007/s00894-022-05190-z
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发表时间:
2022
影响因子:
2.2
通讯作者:
Jeziorski, Bogumił
中科院分区:
文献类型:
--
作者:
Szalewicz, Krzysztof;Jeziorski, Bogumił
Symmetry-adapted perturbation theory (SAPT) is a method for computational studies of noncovalent interactions between molecules. This method will be discussed here from the perspective of establishing the paradigm for understanding mechanisms of intermolecular interactions. SAPT interaction energies are obtained as sums of several contributions. Each contribution possesses a clear physical interpretation as it results from some specific physical process. It also exhibits a specific dependence on the intermolecular separationR. The four major contributions are the electrostatic, induction, dispersion, and exchange energies, each due to a different mechanism, valid at anyR. In addition, at largeR, SAPT interaction energies are seamlessly connected with the corresponding terms in the asymptotic multipole expansion of interaction energy in inverse powers ofR. Since such expansion explicitly depends on monomers’ multipole moments and polarizabilities, this connection provides additional insights by rigorously relating interaction energies to monomers’ properties.
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DOI:
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发表时间:
2003
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1976
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1977
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1987
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1973
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