title: Photodissociation dynamics of 1,2-butadiene at 157 nm.
abstract: Photodissociation dynamics of 1,2-butadiene at 157 nm has been investigated using a molecular beam apparatus based on photoionization using vacuum ultraviolet synchrotron radiation. Six dissociation pathways have been observed. The observed channels are C4H5+H, C4H4+H2, C3H3+CH3, C2H3+C2H3, C2H4+C2H2, and C4H4+H+H. Among all the dissociation channels, the C3H3+CH3 channel is found to be the dominant process. The product kinetic energy distributions of all dissociation channels have been determined from simulating the experimental time-of-flight spectra. Relative branching ratios for all observed dissociation channels were also estimated based on all detected products.
authors.affiliation: State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, People's Republic of China.
authors.forename: Xiaolan
authors.initials: X
authors.lastname: Mu
authors.forename: I-Chung
authors.initials: IC
authors.lastname: Lu
authors.forename: Shih-Huang
authors.initials: SH
authors.lastname: Lee
authors.forename: Xiuyan
authors.initials: X
authors.lastname: Wang
authors.forename: Xueming
authors.initials: X
authors.lastname: Yang