The channel leading to Br2 molecular elimination in 248 nm photolysis of bromoform was observed using cavity ring-down spectroscopy. It was observed that since the ring-down time lasts 500 ns, the rotational population of the Br2 may not be of nascent nature. The vibrational population ratio of Br2(v=1)/Br2(v=0)=0.8±0.2 implied that the fragmented Br2 is vibrationally hot. It was found that the observed vibrationally hot Br2 fragment favors the dissociation pathway from high vibrational levels of the ground state.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry