Observations on the B3Σ –u and B″3Πu states of S2

Abstract

New photographs of the B³Σ^–_u–X³Σ^–_g system of ³²S₂ have been taken and fluorescence excited by several argon-ion and krypton-ion laser lines has been recorded. The rotational analysis of one band, the 1–4 band, is given in detail. A deperturbation of the levels of v= 1 in B³Σ^–_u is described and constants for the perturbing state B″³Πu are derived and discussed. Some of the fluorescence series are assigned to ³²S³⁴S in natural abundance.