期刊
CHEMICAL PHYSICS LETTERS
卷 383, 期 5-6, 页码 606-611出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2003.11.076
关键词
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High-level electronic structure calculation has been performed on the hydrogen-bond complexes of the neutral noble-gas molecules, HArF, HKrF, and HXeF with hydrogen fluoride. Hydrogen bonding from either the hydrogen or the fluorine sides was considered. Very strongly bonding strengths (13-18 kcal/mol) were predicted for the fluorine-side complexes while those of the hydrogen-side complexes were found to be normal for polar neutral molecules. Large increases (409 and 364 cm(-1)) of the H-Ar and H-Kr stretching frequencies were predicted for (HArFHF)-H-... and (HKrFHF)-H-... complexes. The complexation was found to decrease the dissociation barriers of HNgF along the bending coordinates by approximately 20 kcal/mol. (C) 2003 Published by Elsevier B.V.
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