Electric and magnetic properties of LiH X 1Σ+ from analysis of pure rotational and vibration–rotational spectra

Pure rotational and vibration–rotational transitions (1530 lines) of LiH X 1Σ+ in four isotopic variants are analyzed with a deformationally self-consistent procedure in an analytic version. Using a relation between nonadiabatic rotational effects and electric and magnetic properties of the molecule, we estimate a permanent dipole moment of μ0=1.933(76)×10−29 Cm, electric polarity +LiH− and rotational g-factor g0=−0.253(14) for 7Li 2H and g0=−0.618(28) for 7Li1H. They conform acceptably with magnitudes from published experiments on Stark and Zeeman effects and from quantum-chemical calculations of electronic structure.