Revised Analysis of the Spectrum of Singly Ionised Antimony: SbII

The spectrum of antimony was recorded in the 300 – 2080Ǻ region on a 3m normal incidence vacuum spectrograph, at the Physics Department, St. Francis Xavier University, Antigonish, Nova Scotia, Canada. The analysis is considerably extended to complete the configuration 5p6d, for the first time. All other reported levels of 5s5p3, 5p5d, 5p6s and 5p7s were also confirmed. The three transitions without good intensities at 95802.6, 93197.5 and 86066.8 cm-1 have been identified to establish the missing 5s5p3 1D2 level, fitting nicely into the least squares fitted calculations almost for all the reported levels of 5p6p, five of the 5p7p and two of the 5p4f, Beside that a few more levels with dual J values without any configuration assignment are also listed and I have tried to interpret these levels theoretically. The Hartree- Fock calculations with relativistic corrections using Cowan Codes for Sb II to get ab- initio energy parameters used in the level fitting calculations are used.