A combined experimental and theoretical study of resonance emission spectra of SO2((C)over-tildeB(2))

Experimental and theoretical resonance emission spectra are obtained for a number of vibrational states of SO2((C) over tilde(1)B(2)). The experimenta l emission spectra are dominated by (n(1) nu(1), n(2) nu(2), 0) bands, but some weak activity in the anti-symmetric stretch (nu(3)) is observed. The c alculated emission spectra based on an empirical near-equilibrium potential energy surface agree reasonably well with experiment for two lowest states investigated here, but fail to reproduce higher ones. Resonance Raman spec tra are also calculated and agree well with an earlier experiment. (C) 2000 Elsevier Science B.V. All rights reserved.