Abstract

We combined radial functions for the rotational g-factor and electric dipole moment, from molecular electronic computations but tested with experimental data, with spectral data of 557 pure rotational and vibration—rotational transitions of LiH in four isotopic variants; on this basis we evaluated separate radial functions related to particular terms in the effective Hamiltonian for adiabatic, nonadiabatic rotational an nonadiabatic vibrational effects of the separate nuclei, in addition to the internuclear potential energy that predominantly determines the wavenumbers of these transitions. The contributions of the former (extra-mechanical) effects to term coefficients defining the energies of vibration—rotational states have comparable magnitudes.

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