Theoretical investigation of weakly interacting molecular systems using the virial theorem

In this work we examine some H‐bonded systems using the method of separated molecular orbitals (SMOs) at the Hartree‐Fock level. Several geometry‐optimized configurations of the water hexamer were chosen for the study. The energetic components for the monomers in the whole structures and also in the...

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Published in:International journal of quantum chemistry 2005-09, Vol.104 (4), p.578-585
Main Authors: Kozmutza, Cornelia, Tfirst, Ernő
Format: Article
Language:English
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energy separation
hydrogen bond
molecular interaction
SMO
water hexamer
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description In this work we examine some H‐bonded systems using the method of separated molecular orbitals (SMOs) at the Hartree‐Fock level. Several geometry‐optimized configurations of the water hexamer were chosen for the study. The energetic components for the monomers in the whole structures and also in the contributing subunits of the supersystems were calculated. Five different basis sets were applied and the fulfillment of the virial theorem was assessed. A two‐parameter geometry dependence of these energetic components in a model water dimer was also investigated. © 2005 Wiley Periodicals, Inc. Int J Quantum Chem, 2005
doi_str_mv 10.1002/qua.20620
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subjects energy separation
hydrogen bond
molecular interaction
SMO
water hexamer
title Theoretical investigation of weakly interacting molecular systems using the virial theorem
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