Spectroscopy and physics of atoms and molecules

Influence of non-adiabatic interactions on the Lande $g$-factors of the $X^2\Sigma^+\sim A^2\Pi\sim B^2\Sigma^+$ complex of the CN radical

S. V. Kozlov, A. V. Stolyarov, E. A. Pazyuk

Lomonosov Moscow State University, Faculty of Chemistry, Moscow, Russia

Abstract: The effect of the electron-rotational interaction induced by an external magnetic field on the values of Lande g-factors is systematically investigated within the quantum mechanical model of coupled radial Schrödinger equations for locally and regularly perturbed electronic-vibrational-rotational (rovibronic) levels of nonadiabatically coupled $X^2\Sigma^+\sim A^2\Pi\sim B^2\Sigma^+$ states of the CN radical, whose isotopomers are of persistent astronomical interest due to their wide use in optical diagnostics of various regions of the interstellar and near-stellar medium.

Keywords: Lande $g$-factor, non-adiabatic interaction, CN radical.

Received: 27.06.2023
Revised: 14.07.2023
Accepted: 14.07.2023

DOI: 10.61011/OS.2023.08.56293.5363-23

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