Effect of spin-orbit excitation on chemical reactivity: Laser transient absorption spectroscopy of Br(2P 1 2, 2P 3 2 + IBr reactive dynamics

Harold K. Haugen*, Eric Weitz, Stephen R. Leone

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)75-80
Number of pages6
JournalChemical Physics Letters
Volume119
Issue number1
DOIs
StatePublished - Aug 23 1985

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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