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Open Access Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary Complexes

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We report anharmonic vibrational analyses of the coupling between the red-shifted high frequency HFstretching vibrations and low frequency intermolecular modes in the hydrogen-bonded complexes thiirane-HF and H2 O-HF. The important non-diagonal anharmonicities found in high-level ab initio calculations are consistent with recent experimental results. The physical origin of the coupling mechanism implies that a physically correct treatment of hydrogen-bond induced vibrational red shifts requires a vibrational treatment far beyond the customary one-dimensional approach combined with large basis set electronic structure calculations.
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Keywords: HYDROGEN FLUORIDE; HYDROGEN-BONDED COMPLEXES; THIRANE; VIBRATIONAL DYNAMICS; WATER

Document Type: Editorial

Publication date: May 1, 2004

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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