Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary Complexes

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...

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Main Authors: Manuel Goubet, Bruno Madebène, Marius Lewerenz
Format: Article
Language:deu
Published: Swiss Chemical Society 2004-05-01
Series:CHIMIA
Subjects:
Online Access:https://chimia.ch/chimia/article/view/3848
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author Manuel Goubet
Bruno Madebène
Marius Lewerenz
author_facet Manuel Goubet
Bruno Madebène
Marius Lewerenz
author_sort Manuel Goubet
collection DOAJ
description 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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spelling doaj.art-7717038bb5f6451e9a09f29923c5aa4e2022-12-22T04:36:10ZdeuSwiss Chemical SocietyCHIMIA0009-42932673-24242004-05-0158510.2533/000942904777677803Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary ComplexesManuel GoubetBruno MadebèneMarius Lewerenz 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. https://chimia.ch/chimia/article/view/3848Hydrogen-bonded complexesHydrogen fluorideThiraneVibrational dynamicsWater
spellingShingle Manuel Goubet
Bruno Madebène
Marius Lewerenz
Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary Complexes
CHIMIA
Hydrogen-bonded complexes
Hydrogen fluoride
Thirane
Vibrational dynamics
Water
title Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary Complexes
title_full Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary Complexes
title_fullStr Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary Complexes
title_full_unstemmed Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary Complexes
title_short Coupled Anharmonic Vibrational Dynamics of the Hydrogen Bond in Binary Complexes
title_sort coupled anharmonic vibrational dynamics of the hydrogen bond in binary complexes
topic Hydrogen-bonded complexes
Hydrogen fluoride
Thirane
Vibrational dynamics
Water
url https://chimia.ch/chimia/article/view/3848
work_keys_str_mv AT manuelgoubet coupledanharmonicvibrationaldynamicsofthehydrogenbondinbinarycomplexes
AT brunomadebene coupledanharmonicvibrationaldynamicsofthehydrogenbondinbinarycomplexes
AT mariuslewerenz coupledanharmonicvibrationaldynamicsofthehydrogenbondinbinarycomplexes