Tests of MULTIMODE calculations of rovibrational energies of CH4Wu, J.Y., Huang, X.C., Carter, S. and Bowman, J.M. (2006) Tests of MULTIMODE calculations of rovibrational energies of CH4. Chemical Physics Letters, 426 (4-6). pp. 285-289. ISSN 0009-2614 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1016/j.cplett.2006.06.024 Abstract/SummaryWe report variational calculations of rovibrational energies of CH4 using the code MULTIMODE and an ab initio force field of Schwenke and Partridge. The systematic convergence of the energies with respect to the level of mode coupling is presented. Converged vibrational energies calculated using the five-mode representation of the potential for zero total angular momentum are compared with previous, benchmark calculations based on Radau coordinates using this force field for zero total angular momentum and for J = 1. Very good agreement with the previous benchmark calculations is found. (c) 2006 Elsevier B.V. All rights reserved.
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