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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Quantum mechanical explanation of intermolecular interactions ： ウィキペディア英語版 Quantum-mechanical explanation of intermolecular interactions In the natural sciences, an intermolecular force is an attraction between two molecules or atoms. They occur from either momentary interactions between molecules (the London dispersion force) or permanent electrostatic attractions between dipoles. They can be explained using a simple phenomenological approach (see intermolecular force), or using a quantum mechanical approach. ==Perturbation theory== Hydrogen bonding, dipole–dipole interactions, and London (Van der Waals) forces are most naturally accounted for by Rayleigh–Schrödinger perturbation theory (RS-PT). In this theory—applied to two monomers ''A'' and ''B''—one uses as unperturbed Hamiltonian the sum of two monomer Hamiltonians, $H^\; \backslash equiv\; H^+\; H^$ In the present case the unperturbed states are products $\backslash Phi\_n^A\; \backslash Phi\_m^B\backslash quad$ with $\backslash quad\; H^A\; \backslash Phi\_n^A\; =\; E\_n^A\backslash Phi\_n^A\backslash quad$ and $\backslash quad\; H^B\; \backslash Phi\_m^B\; =\; E\_m^B\backslash Phi\_m^B$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Quantum-mechanical explanation of intermolecular interactions」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.