75-35-4 Laser-induced Decomposition of 1,1,2-Trichloroethane
https://www.lookchem.com/CASDataBase_75-35-4.htm CH 2 ClCHCl 2 was photolyzed with a focusing geometry using the P(24) line of the 10.6 μm CO 2 band (940.6 cm -1 ).The final products of neat photolysis were cis- and trans-CHCl=CHCl, CH 2 =CCl 2 , CH 2 =CHCl, CH<*>CCl, CH<*>CH, and C 4 H 2 .The relative yield of CH 2 =CCl 2 in particular was strongly dependent on CH 2 ClCHCl 2 pressure and sensitive to the addition of H atom containing molecules.A series of diagnostic experiments shows that the dichloroethene isomers are formed by three different processes, i.e., infrared multiphoton decomposition, collision-induced decomposition, and radical chain reaction.Infrared multiphoton decomposition and collision-induced decomposition give rise to cis- and trans-CHCl=CHCl predominantly, while the radical chain reaction generates the dichloroethane isomers in comparable amounts at high reactant pressures, the most probable initiation step being the C-Cl bond-scission reaction of