Abstract

The laser induced fluorescence spectrum of the CS2 cation has been obtained in solid Ne and Ar matrices. The transitions observed originate in the X 2Π state and terminate in the A 2Π state. In the Ne matrix, sharp lines with well resolved vibrational structure are observed. There is only a very small difference between gas-phase and Ne matrix values for the electronic origin and vibrational frequencies, although the latter analysis can be extended somewhat in the matrix. In the Ar matrix only a poorly resolved and strongly shifted CS+2 spectrum is observed. A qualitative explanation for this different behavior is advanced.

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