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An extension of deformationally self-consistent approach to a quantitative analysis of adiabatic and nonadiabatic effects in vibration-rotational spectra of diatomic molecules is presented. We consider vibrational displacements of nuclei in the vicinity of dynamical reference conformation R-v J that depends not only on the rotational quantum number J through the action of centrifugal force, but also on the vibrational v one, through nonadiabatic vibrational effects of high order. The method is applied to LiH X (1)Sigma(+) ; reported have numbers of transitions are reproduced with <(sigma)over cap> = 1.090 and F = 5.98 x 10(14) using 14 independently adjusted parameters and 14 constrained parameters t(i=0-6)(Li,H) , representing nonadiabatic rotational effects. The latter have been evaluated from the rotational g-factor and electric dipole moment of LiH, both electronically computed.

acta physica polonica. a

Quantitative Analysis of Vibration-Rotational Spectra of Diatomic Molecules with (v,j)-Dependent Dynamical Reference Conformation. Application to LiH X<sup>1</sup>Σ<sup>+</sup>

Quantitative Analysis of Vibration-Rotational Spectra of Diatomic Molecules with (v,j)-Dependent Dynamical Reference Conformation. Application to LiH X1Σ+

Quantitative Analysis of Vibration-Rotational Spectra of Diatomic Molecules with (v,j)-Dependent Dynamical Reference Conformation. Application to LiH X¹Σ⁺