An accurate ab initio calculation of the dipole moment function of GeH

Abstract

The potential energy and dipole moment functions of the X 2Π ground state of the GeH radical have been computed using highly correlated SCEP CEPA electronic wavefunctions. The calculated dipole moment μ 0 in the vibrational ground state is 0.16 D (Ge +H −). This result questions the value of 1.24 D derived by Brown, Evenson and Sears from a comparison of intensities of electric and magnetic dipole transitions. The GeH radical is predicted to be a strong infrared emitter.