Title
A Hirshfeld partitioning of the MP2 correlation energy : method and its application to the benzene dimers
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Subject
Physics
Chemistry
Source (journal)
Journal of chemical theory and computation
Volume/pages
7(2011) :7 , p. 2049-2058
ISSN
1549-9618
ISI
000292617900006
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In this work a method is presented for the partitioning of MP2 correlation energies through a grid-space partitioning using the iterative Hirshfeld weight function. The correlation energies are partitioned into mono- and diatomic contributions using two alternative schemes, which allow different levels of parallelization. The method is tested on a set of 24 molecules containing various atoms, leading to the conclusion that, while the numerical results of the two schemes slightly differ, the chemical information contained in them is similar. The method is subsequently applied to the analysis of the interaction energy of three benzene dimers.
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