Chemical Physics Letters, Vol.349, No.3-4, 257-265, 2001
Competitive channels in the jet-cooled photodissociation of the CH2Cl radical
The photodissociation of CH2Cl is studied by the ion imaging technique. At 235-243 nm, Cl photofragments are produced via the simultaneous excitation of the perpendicular (1(2)A(t) <-- 1(2)B(1)) and parallel (2(2)B(1) <-- 1(2)B(1)) electronic transitions. The relative populations and translational energy distributions of Cl fragments generated via each transition are extracted. H-atom products, which are detected in a one-color experiment at 243.1 nm, exhibit an angular distribution characteristic of perpendicular transitions only, They may be produced via excitation to the valence 1(2)A(1) and/or Rydberg 2(2)A(1)(3s) states.