Abstract
The emission spectra of CuS has been photographed at high resolution in the region 4 000 Å-5 000 Å. Three band systems have been rotationally analyzed for both isotopes, namely the E2Π3/2 - X2Π3/2, F(Ω = ½) - X2Π1/2 and G2Π3/2 - X2Π3/2 systems. In order to reduce correlations between the molecular constants all lines of the analyzed bands (including lines of the A2Σ - X2Πi system) were fitted together. Molecular constants of the states are given.
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