Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/8258
Title: Møller-Plesset perturbation energies and distances for HeC20extrapolated to the complete basis set limit
Authors: Varandas, A. J. C. 
Issue Date: 2008
Citation: Journal of Computational Chemistry. 9999:9999 (2008) NA
Abstract: The potential energy surface for the C20-He interaction is extrapolated for three representative cuts to the complete basis set limit using second-order Møller-Plesset perturbation calculations with correlation consistent basis sets up to the doubly augmented variety. The results both with and without counterpoise correction show consistency with each other, supporting that extrapolation without such a correction provides a reliable scheme to elude the basis-set-superposition error. Converged attributes are obtained for the C20- He interaction, which are used to predict the fullerene dimer ones. Time requirements show that the method can be drastically more economical than the counterpoise procedure and even competitive with Kohn-Sham density functional theory for the title system. © 2008 Wiley Periodicals, Inc. J Comput Chem, 2008
URI: http://hdl.handle.net/10316/8258
DOI: 10.1002/jcc.21063
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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