A local anharmonic treatment of vibrations of methane

R. Lemus; F. Perez-Bernal; A. Frank; R. Bijker; J. M. Arias

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A local anharmonic treatment of vibrations of methane

R. Lemus·F. Perez-Bernal·A. Frank·R. Bijker·J. M. Arias

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Abstract

The stretching and bending vibrations of methane are studied in a local anharmonic model of molecular vibrations. The use of symmetry-adapted operators reduces the eigenvalue problem to block diagonal form. For the 44 observed energies we obtain a fit with a standard deviation of 0.81 cm$^{-1}$ (and a r.m.s. deviation of 1.16 cm$^{-1}$).

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R. Lemus, F. Perez-Bernal, A. Frank, R. Bijker, J. M. Arias. 1998-11-11. A local anharmonic treatment of vibrations of methane. https://arxiv.org/abs/chem-ph/9606002

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