A Revision of the Analysis of the Fifth Spectrum of Molybdenum (Mo V)

Abstract

The spectrum of Mo V was observed in the wavelength region from 250 to 6000 Å, using a variety of spectrographs and light sources. The level system was revised and extended to include all but one of the levels of 4d2, 4d5s, 4d5d, 4d6s, 4d5p, 4d6p, 4d4f and 5s5p. Hartree-Fock calculations were made and also parametric least-squares calculations including configuration interaction. Scaling factors between Hartree-Fock and least-squares values for the interaction integrals were obtained and used for an isoelectronic comparison. The ionization potential was estimated to be 54.49 ± 0.02 eV.