CALCULATION OF THE FAR-INFRARED SPECTRA FOR (HF)2, (HCL)2 AND (HBR)2

Calculations of far-infrared spectra for the weakly bound complexes (HF)2, (HCl)2 and (HBr)2 are reported. For (HF)2 and (HCl)2, potentials fitted to ab initio data are used. Spectra are also predicted using simple classical potentials. The method involves diagonalising the Hamiltonian for the dimer...

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Main Authors: Althorpe, S, Clary, D, Bunker, P
Format: Journal article
Language:English
Published: 1991
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author Althorpe, S
Clary, D
Bunker, P
author_facet Althorpe, S
Clary, D
Bunker, P
author_sort Althorpe, S
collection OXFORD
description Calculations of far-infrared spectra for the weakly bound complexes (HF)2, (HCl)2 and (HBr)2 are reported. For (HF)2 and (HCl)2, potentials fitted to ab initio data are used. Spectra are also predicted using simple classical potentials. The method involves diagonalising the Hamiltonian for the dimer with the monomer and intermolecular bond lengths held fixed. The approach gives very good agreement with energy levels calculated with the close coupling method, particularly for (HCl)2. Furthermore, the simple electrostatic potential gives a spectrum for (HCl)2 that agrees surprisingly well with that obtained from the ab initio potential energy surface. © 1991.
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spelling oxford-uuid:beba28bc-ca86-4324-91aa-b35a705bcc9b2022-03-27T05:42:18ZCALCULATION OF THE FAR-INFRARED SPECTRA FOR (HF)2, (HCL)2 AND (HBR)2Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:beba28bc-ca86-4324-91aa-b35a705bcc9bEnglishSymplectic Elements at Oxford1991Althorpe, SClary, DBunker, PCalculations of far-infrared spectra for the weakly bound complexes (HF)2, (HCl)2 and (HBr)2 are reported. For (HF)2 and (HCl)2, potentials fitted to ab initio data are used. Spectra are also predicted using simple classical potentials. The method involves diagonalising the Hamiltonian for the dimer with the monomer and intermolecular bond lengths held fixed. The approach gives very good agreement with energy levels calculated with the close coupling method, particularly for (HCl)2. Furthermore, the simple electrostatic potential gives a spectrum for (HCl)2 that agrees surprisingly well with that obtained from the ab initio potential energy surface. © 1991.
spellingShingle Althorpe, S
Clary, D
Bunker, P
CALCULATION OF THE FAR-INFRARED SPECTRA FOR (HF)2, (HCL)2 AND (HBR)2
title CALCULATION OF THE FAR-INFRARED SPECTRA FOR (HF)2, (HCL)2 AND (HBR)2
title_full CALCULATION OF THE FAR-INFRARED SPECTRA FOR (HF)2, (HCL)2 AND (HBR)2
title_fullStr CALCULATION OF THE FAR-INFRARED SPECTRA FOR (HF)2, (HCL)2 AND (HBR)2
title_full_unstemmed CALCULATION OF THE FAR-INFRARED SPECTRA FOR (HF)2, (HCL)2 AND (HBR)2
title_short CALCULATION OF THE FAR-INFRARED SPECTRA FOR (HF)2, (HCL)2 AND (HBR)2
title_sort calculation of the far infrared spectra for hf 2 hcl 2 and hbr 2
work_keys_str_mv AT althorpes calculationofthefarinfraredspectraforhf2hcl2andhbr2
AT claryd calculationofthefarinfraredspectraforhf2hcl2andhbr2
AT bunkerp calculationofthefarinfraredspectraforhf2hcl2andhbr2