Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5043
Title: A CCSD(T) study of the He〮NO molecular complex
Authors: Lee, EPF
Wright, TG
Keywords: Helium neutral atoms
Nitrogen compounds
Quasimolecules
Coupled cluster calculations
Molecular electronic states
Issue Date: 1-Jul-1998
Publisher: American Institute of Physics
Source: Journal of chemical physics, 1 July 1998, v. 109, no. 1, p. 157-161 How to cite?
Journal: Journal of chemical physics 
Abstract: Calculations at the CCSD(T) level of theory employing the cc-pVTZ, aug-cc-pVTZ and aug-cc-pVQZ basis sets are reported. Both the ²A' and the ²A" states are considered, as well as the two linear structures, He〮NO and He〮ON. The highest level of calculation, CCSD(T)/aug-cc-pVQZ//CCSD(T)/aug-cc-pVTZ, indicates that the global minimum is a skewed T-shaped structure, in agreement with recent CEPA calculations, but in disagreement with MP4 calculations, which concluded that the linear He〮ON isomer was the lowest energy geometry. Although the highest level of theory used here indicates that the ²A' surface is the lower in energy, the ordering of the ²A' and the ²A" surfaces has not yet been firmly established. The interaction energy is calculated to be ~27 cmᐨ1, and estimated as being ~30 cmᐨ1 at the basis set limit.
URI: http://hdl.handle.net/10397/5043
ISSN: 1089-7690 (online)
0021-9606 (print)
DOI: 10.1063/1.476533
Rights: © 1998 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in E. P. F. Lee & T. G. Wright, J. Chem. Phys. 109, 157 (1998) and may be found at http://link.aip.org/link/?jcp/109/157.
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