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On the importance of the fragment relaxation energy terms in the estimation of the basis set superposition error correction to the intermolecular interaction energy

Xantheas, Sotiris S.·1996·The Journal of Chemical Physics

Abstract

The inclusion of the fragment relaxation energy terms in the estimation of the basis set superposition error (BSSE) correction to the interaction energy is necessary in order to ensure formal convergence to the uncorrected result at the complete basis set (CBS) limit. The problems associated with their omission are demonstrated for F−(H2O), Cl−(H2O), and (H2O)2 especially when very large basis sets are used. The family of correlation consistent basis sets allows for a heuristic extrapolation of both uncorrected and BSSE-corrected electronic energy differences of the three complexes to the MP2 CBS limits of −27.1, −15.1, and −4.9 kcal/mol respectively.

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Metadata

Authors
Xantheas, S. S.
Venue
The Journal of Chemical Physics
Published
1996-06-01
Volume
104
Issue
21
Pages
8821-8824
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W2090360531
Cited by
675
References
0
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: On the importance of the fragment relaxation energy terms in the estimation of the basis set superposition error correction to the intermolecular interaction energy. https://app.cochat.ai/papers/10.1063/1.471605
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Xantheas, S. S. (1996). On the importance of the fragment relaxation energy terms in the estimation of the basis set superposition error correction to the intermolecular interaction energy. The Journal of Chemical Physics. https://doi.org/10.1063/1.471605

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