Abstract

The low rotational features of the (0,0) F 2Σ+←X 2Σ+ band system of a supersonic molecular beam of RuN have been recorded at high spectral resolution via laser induced fluorescence spectroscopy. The electric field induced dependence of the P11(1) and Q21R(0) branch features of the RuN104 isotopomer were analyzed to produce permanent electric dipole moments, μ, of 1.89(5) and 1.07(5) D for the X 2Σ+ and F 2Σ+ states, respectively. The splitting in the field free spectrum of the RuN101 isotopomer was analyzed to produce a Fermi contact, bF(X 2Σ+), parameter of −0.0349(4) cm−1. The results are interpreted using the electronic structure predictions for the F 2Σ+ and X 2Σ+ states given by Ram et al. [J. Chem. Phys. 109, 6329 (1998)] and compared with RuC and FeC.

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