Campus Units
Chemistry
Document Type
Article
Publication Version
Published Version
Publication Date
8-1996
Journal or Book Title
Journal of Physical Chemistry
Volume
10
Issue
34
First Page
14316
Last Page
14328
DOI
10.1021/jp960694r
Abstract
Two algorithms for many-body interaction energy decomposition within the Hartree−Fock approximation are presented. These two schemes, which are extensions of the two-body Kitaura−Morokuma (KM) analysis and the reduced variational space self-consistent-field (RVS SCF) method, decompose the interaction energy into electrostatic, exchange, polarization, and charge transfer components. The Hartree-Fock interaction energies for the optimum water dimer, trimer, and tetramer were analyzed in terms of two-, three-, and four-body terms of these individual components. Counterpoise calculations of the exchange and charge transfer components proposed by Tomasi were performed to estimate the basis set superposition errors. The results show that the three-body nonadditive terms of water trimer and tetramer are dominated by the polarization and charge transfer components at their optimized structures with various basis sets and that the four-body term of water tetramer is very small. The RVS SCF energy components, whose corresponding wave functions obey the Pauli exclusion principle, are better behaved than their counterparts in the KM analysis when the orbital interactions are strong.
Copyright Owner
American Chemical Society
Copyright Date
1996
Language
en
File Format
application/pdf
Recommended Citation
Chen, Wei and Gordon, Mark S., "Energy Decomposition Analyses for Many-Body Interaction and Applications to Water Complexes" (1996). Chemistry Publications. 328.
https://lib.dr.iastate.edu/chem_pubs/328
Comments
Reprinted (adapted) with permission from Journal of Physical Chemistry 100 (1996); 14316, doi:10.1021/jp960694r. Copyright 1996 American Chemical Society.