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Theoretical study of the 1:1 complexes between carbon monoxide and hypohalous acids

AuthorsBlanco, Fernando; Alkorta, Ibon ; Solimannejad, Mohammad; Eguero, José
Issue Date2009
PublisherAmerican Chemical Society
CitationThe journal of physical chemistry, A, Molecules, spectroscopy, kinetics, environment & general theory 113: 3237- 3244 (2009)
AbstractA theoretical study of the complexes formed between carbon monoxide, CO, and the hypohalous acids (HOX, X = F, Cl, Br, and I) has been carried out using DFT [M05-2x/6-311++G(2d,2p)] and ab initio methods [(MP2/6-311++G(2d,2p) and MP2/aug-cc-pVTZ)]. Six minima were found, which correspond to two hydrogen-bonded complexes, two halogen-bonded complexes, and two van der Waals complexes. The hydrogen-bonded complexes with the carbon atom of the CO molecule are the most stable for hypohalous acids with X = F, Cl, and Br, whereas for X = I, the halogen-bonded complex with the same atom of carbon monoxide is the most stable. A blue shift in the stretching frequency of the OH bond in the hydrogen-bonded complexes with the carbon atom of CO was observed. In addition, a blue shift was observed in the bond of the hypohalous acid not involved in the interaction. © 2009 American Chemical Society.
Publisher version (URL)http://dx.doi.org/10.1021/jp810462h
Identifiersdoi: 10.1021/jp810462h
issn: 1089-5639
Appears in Collections:(IQM) Artículos
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