EFFECTIVE DIPOLE-MOMENT AND BAND INTENSITIES PROBLEM FOR CARBON-DIOXIDE

The effective Hamiltonian and effective dipole moment approach based on the contact transformation method is applied to the band intensities problem of carbon dioxide. Using eigenfunctions of our reduced effective Hamiltonian (J. Mol. Spectrosc. 156, 48-64 (1992)) the experimental rotationless electric-dipole transition moments of the C-12 O-16(2) bands lying in the 15- and 4.3-mu m regions have been fitted to parameters of the expansion of the effective dipole moment matrix elements. The quality of fitting and extrapolational properties of fitted parameters are discussed. Formulas in terms of basic molecular constants for such parameters are presented. Numerical calculations of these parameters have been performed. The reason for discrepancies of some calculated and fitted parameters is discussed. (C) 1995 Academic Press, Inc.