REASSIGNMENT OF $Br_{2}$ ULTRAVIOLET LASER TRANSITION

Abstract

Author Institution: Department of Chemistry, Vanderbilt UniversityThe $Br_{2}$ laser transition near 2900 {\AA} has been re-examined using a single isotope of bromine. The vibrational analysis contradicts previous assignments, according to which the lower state was designated $B (O^{+}u 3\pi)$. The new analysis indicates this transition is very likely 1432, $2g^{3}\Pi \rightarrow 2431, 2u^{3} \Pi$, the same as the preferred designation for the $I_{2}$ 3400 {\AA} laser transition. The prominent bands in the laser spectrum (2913-2926 {\AA}) are 0-10, 2-13, 1-12, 0-11, and 2-14