The photodissociation of iodine monochloride at 235 nm

The photodissociation of iodine monochloride following excitation at 235 nm, within its second absorption band, has been investigated further using ion imaging methods to monitor the Cl(2P°32) and Cl∗(2P°12) atomic products. The angular distributions of these products are found to be characterised by anisotropy parameters, β = 1.8 ± 0.2 and −1.0 ± 0.1 for the Cl and Cl∗ products, respectively, whilst the measured Cl/Cl∗ translational energies indicate the involvement of the two product channels: ICl + hν(λ = 235 nm) → Cl + I∗ (2P°12) and Cl∗ + I(2P°32).