A laser pulse-and-probe technique incorporating a tunable infrared color center laser is used to study the reactions and quenching of Br(2P 1 2, 2P 3 2) with IBr. A highly selective spin-orbit effect on chemical reactivity is observed. The ground-state reaction, Br(2P 3 2)+IBr → Br2 + 1, k = (4.6 ± 0.6)×10-11 cm3 molecule-1 s-1 proceeds at a rate ≥ 40 times faster than the rate of total Br- quenching and reaction with IBr.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry