Determining the Parameters of the Effective Rovibrational Hamiltonian of the ν78 Band of the Ethylene-1-13C Molecule


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Abstract

The spectrum of the ν7 + ν8 band of the ethylene-1-13C (13C12СH4) molecule is recorded with a Bruker IFS 125 HR Fourier spectrometer in the range from 1500 to 2100 cm–1 with a resolution of 0.0025 cm–1. As a result of analysis of the experimental spectrum, more than 1000 transitions belonging to the ν7 + ν8 band are assigned. Parameters of the Hamiltonian obtained as a result of solving the inverse spectroscopic problem reproduce 400 initial experimental energies with error close to the experimental one.

About the authors

Yu. S. Aslapovskaya

Institute of Physics and Technology of the National Research Tomsk Polytechnic University

Author for correspondence.
Email: aslapovskaya@gmail.com
Russian Federation, Tomsk

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