Document Detail


Variational Calculations of Vibrational Energies and IR Spectra of trans and cis-HOCO Using New ab initio Potential Energy and Dipole Moment Surfaces.
MedLine Citation:
PMID:  23151059     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We report ab initio potential energy and dipole moment surfaces that span the regions describing the minima of trans and cis-HOCO and the barrier separating them. We use the new potential in three types of variational calculations of the vibrational eigenstates, for zero total angular momentum. Two use the code MULTIMODE (MM) in the so-called single-reference and reaction-path versions. The third uses the exact Hamiltonian in diatom-diatom Jacobi coordinates. The single-reference version of MM is limited to a description of states that a localized at each minimum separately, while the reaction-path version and the Jacobi approach describe localized and delocalized states. The vibrational IR spectrum for zero total angular momentum is also reported for the trans and cis fundamentals and selected overtone and combination states with signicant oscillator strength.
Authors:
Yimin Wang; Stuart Carter; Joel M Bowman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-14
Journal Detail:
Title:  The journal of physical chemistry. A     Volume:  -     ISSN:  1520-5215     ISO Abbreviation:  J Phys Chem A     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9890903     Medline TA:  J Phys Chem A     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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