Abstract

The 193 nm photolysis of SO 2 has been studied by monitoring the infrared emission of the vibrationally excited species using time-resolved FTIR emission spectroscopy. Evidence for a direct electronic transition from the C state to the ground state of SO 2 was found in addition to photodissociation following the 193 nm excitation. Relaxation rate constants for the observed vibrationally excited species, SO, SO 2( ν 1), and SO 2( ν 3), were calculated from the experimental decays.

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