In:
International Journal of Quantum Chemistry, Wiley, Vol. 109, No. 1 ( 2009-01), p. 91-96
Abstract:
The convergence of the polarization consistent family of basis sets to the MP2 complete basis set (CBS) limit has been examined for the dissociation energies of five weakly bound clusters: (HF) 2 , (HF) 3 , (H 2 O) 2 , (H 2 O) 3 , and (C 2 H 2 ) 2 . MP2 results obtained with two series of polarization consistent basis sets and the analogous series of Dunning's correlation consistent basis sets are compared to the CBS limits obtained with the explicitly correlated MP2‐R12 method. Although the polarization consistent basis sets do converge systematically to the CBS limit, the correlation consistent basis sets with diffuse functions on nonhydrogen atoms (i.e., cc‐pV X Z for H and aug‐cc‐pV X Z otherwise) consistently produced the smallest errors. Counterpoise corrections for basis set superposition error did not improve the performance of either the polarization or correlation consistent basis sets. © 2008 Wiley Periodicals, Inc. Int J Quantum Chem, 2009
Type of Medium:
Online Resource
ISSN:
0020-7608
,
1097-461X
Language:
English
Publisher:
Wiley
Publication Date:
2009
detail.hit.zdb_id:
1475014-4
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