Reduced effective Hamiltonian for global fitting of C2H2 ro-vibrational lines

Valery I. Perevalov; E. I. Lobodenko; Jean-Luc Teffo

doi:10.1117/12.267753

3 March 1997 Reduced effective Hamiltonian for global fitting of C₂H₂ ro-vibrational lines

Valery I. Perevalov, E. I. Lobodenko, Jean-Luc Teffo

Proceedings Volume 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy; (1997) https://doi.org/10.1117/12.267753
Event: 12th Symposium and School on High Resolution Molecular Spectroscopy, 1996, St. Petersburg, Russian Federation

Abstract

An effective Hamiltonian describing globally all vibrational-rotational energy levels of C₂H₂ molecule in the ground electronic state has been written up to fourth order in Amat-Nielsen ordering scheme using symmetry arguments. This Hamiltonian contains all resonance interaction terms within polyad scheme discussed by M. E. Kellman [J. Chem. Phys. 95, 8671 (1991)]. D. M. Jonas et al [J. Chem. Phys. 99, 7350 (1993)]. M. Abbouti Temsamani and M. Herman [J. Chem. Phys. 103, 5931 (1995)]. The reduction of this effective Hamiltonian by means of unitary transformations has been performed.

Citation Download Citation

Valery I. Perevalov, E. I. Lobodenko, and Jean-Luc Teffo "Reduced effective Hamiltonian for global fitting of C₂H₂ ro-vibrational lines", Proc. SPIE 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy, (3 March 1997); https://doi.org/10.1117/12.267753

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