Knowledge Bank

The highly accurate ground state constants previously $determined1$ from an analysis of allowed transitions in the $\nu 2$ band are augmented with values for $AO-BO$ and $DOK$. The latter were determined via ground state combination differences between allowed and perturbation allowed transitions in the parallel and perpendicular components of the $2\nu 6$ band. These ground state differences were obtained for levels with $\Delta J\prime ‘-0$ and $\Delta k\prime ‘=\pm 3$.