Note: Ultraviolet photodissociation dynamics of o-bromofluorobenzene in 234-267 nm

Min Chen; Chao He; Xilin Bai; Dongfeng Zhao; Yang Chen

doi:10.1063/1.5007129

Note: Ultraviolet photodissociation dynamics of o-bromofluorobenzene in 234-267 nm

J Chem Phys. 2017 Dec 14;147(22):226101. doi: 10.1063/1.5007129.

Authors

Min Chen¹, Chao He¹, Xilin Bai¹, Dongfeng Zhao¹, Yang Chen¹

Affiliation

¹ CAS Center for Excellence in Quantum Information and Quantum Physics, Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.

PMID: 29246066
DOI: 10.1063/1.5007129

Abstract

Photodissociation dynamics of o-bromofluorobenzene in the 234-267 nm range has been experimentally investigated using the DC-slice velocity map imaging technique. It is found that Br(²P_3/2) atoms produced from repulsive singlet state surfaces via excitation of one or more ¹ππ* excited states dominate the Br photofragments. The quantum yield of spin-orbit excited Br(²P_1/2) atoms was found to be only ∼0.02, indicating weak spin-orbit couplings in the low-lying electronic states of o-bromofluorobenzene.