Effect of reagent vibration on the hydrogen atom + water-d reaction: an example of bond-specific chemistry

Abstract

OH and OD product branching ratios and internal state distributions have been measured in a state-to-state study of the reaction H+HOD(υ 1 ,υ 2 ,υ 3 )→OH(υ,N)(OD(υ,N))+HD(H 2 ). The HOD molecules are prepared in a specific vibrational level (one or two J states) by infrared excitation of thermal HOD using a tunable optical parametric oscillator. Fast («hot») H atoms are generated by laser photolysis of H1 at 266 nm, and the OH and OD reaction products are probed quantum-state-specifically by laser-induced fluorescence.