Dynamics of Br(2Pj ) Formation in the Photodissociation of Bromobenzene

Bulletin of the Korean chemical society

Kiryong Hong¹  Dababrata Paul¹  Hyun Kook Kim¹  Tae Kyu Kim¹ 

关键词: Photodissociation dynamics;    Aryl halides;    Ion-imaging;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The photodissociation dynamics of bromobenzene near 234 nm has been investigated using a two-dimensional photofragment ion-imaging technique coupled with a state-selective [2+1] resonance-enhanced multiphoton ionization (REMPI) scheme. The nascent Br atoms are produced by the primary C-Br bond dissociation, which leads to the formation of C6H5 (X% ) and Br(2Pj , j = 1/2, 3/2). The observed translational energy distributions have been fitted by a single Boltzmann function and two Gaussian functions. Trimodal translational energy distributions of Br(2Pj ) have been assigned to the direct/indirect dissociation mechanisms originating from the initially excited 3(π,π*) state. The assignments have been confirmed by the recoil anisotropy and distribution width corresponding to the individual components.

【 授权许可】

Unknown