Photodissociation of OCS at 222 nm. The triplet channel

The dissociation of OCS at 222 nm produces both S(¹D) and S(³P). By monitoring the Doppler profile of the minor S (³P₂) product on the ³D⁰₃ ← ³P₂ transition it is determined that the branching ratio for this triplet channel is 5% relative to the singlet channel. Detailed analysis of the Doppler profiles provides an anisotropy parameter of β=0.3±0.2 and a recoil speed distribution whose average energy is 37% of the 19881 cm^-1 available energy. The remainder of the energy, 12525 cm^-1, is deposited into CO vibration and rotation. The distributions for both the relative translation and the CO internal energy are broad.