title: Photodissociation dynamics of the methyl perthiyl radical at 248 nm via photofragment translational spectroscopy.
abstract: Photofragment translational spectroscopy was used to study the photodissociation of the methyl perthiyl radical CH(3)SS at 248 nm. The radical was produced by flash pyrolysis of dimethyl disulfide (CH(3)SSCH(3)). Two channels were observed: CH(3) + S(2) and CH(2)S + SH. Photofragment translational energy distributions indicate that CH(3) + S(2) results from C-S bond fission on the ground state surface. The CH(2)S + SH channel can proceed through isomerization to CH(2)SSH on the ground state surface but also may involve production of electronically excited CH(2)S.
authors: Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, USA.
authors: Neil C
authors: NC
authors: Cole-Filipiak
authors: Bogdan
authors: B
authors: Negru
authors: Gabriel M P
authors: GM
authors: Just
authors: Dayoung
authors: D
authors: Park
authors: Daniel M
authors: DM
authors: Neumark
mesh_terms: D004220:Disulfides / Q000737:chemistry*; D005609:Free Radicals / Q000737:chemistry; D055668:Photochemical Processes; D011789:Quantum Theory; D013057:Spectrum Analysis
chemical_list: D004220:Disulfides; D005609:Free Radicals; C021181:dimethyl disulfide