Electron impact dissociation of OCS

A special matrix isolation detector, sensitive to S(S-1(0)), has been used to study the dissociation of OCS into this fragment over an electron energy range from threshold to 400 eV. The maximum cross section occurs at an imp act energy of 55 eV and has been measured to be 3.3 x 10(-17) cm(2). Time o f flight spectroscopy has been used to monitor fragment kinetic energies. O ptically allowed processes are observed to dominate the dissociation. Strik ing similarities between electron and 157 nm photon dissociation have been noted.