title: Rovibrational state specific scattering distributions of the O((1)D) + CD(4)→ OD + CD3 (v1, v2, N) reaction.
abstract: The rovibrational state distributions and state-resolved scattering distributions of CD(3) radicals produced by the reaction O((1)D) + CD(4) were investigated by crossed molecular beam ion imaging. The rotational structure of the resonance-enhanced multiphoton ionization spectrum of CD(3) in the ground vibrational state indicates that the low K rotational states of CD(3) radicals are preferentially populated. The state-resolved scattering distributions of CD(3) (v = 0) and those of the excited states of the out-of-plane bending (v(2)) mode exhibit a structureless forward-scattering component due to an insertion pathway and a structured backward-scattering component due to an abstraction path. The scattering distributions of CD(3) in the excited state of the C-D symmetric stretch (v(1)) do not exhibit the abstraction component. The scattering distribution of the abstraction component gradually extends in the forward direction with increasing intensity as the v(2) vibration becomes more strongly excited. This suggests that abstraction with a larger impact parameter results in stronger excitation of v(2).
authors.affiliation: Chemical Dynamics Laboratory, RIKEN, Hirosawa 2-1, Wako 351-0198, Japan. t-suzuki@riken.jp.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kohguchi
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Ogi
authors.forename: Toshinori
authors.initials: T
authors.lastname: Suzuki