Abstract

The dynamics of the S( 1D) + CD 4 → SD + CD 3 reaction has been studied in a photolysis-probe experiment. S( 1D) reagent was prepared by laser photolysis of CS 2, and the SD(X 2Π) product was detected by laser fluorescence excitation. The nascent rotational/fine-structure state distribution of the SD(X 2Π) product was determined. The experimentally determined rotational state distribution within each fine-structure manifold agrees well with the predictions of a statistical ‘prior’ distribution, while the F 1 to F 2 fine-structure branching ratio is higher than predicted statistically. The product state distribution is consistent with reaction through the formation and decay of an energized CD 3SD complex.

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