Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5415675 | Journal of Molecular Spectroscopy | 2009 | 5 Pages |
Abstract
The AË2Î (000)-XË2Σ+(000) transition of BaOD has been rotationally analyzed using laser excitation spectroscopy. BaOD molecules were synthesized through the reaction of Ba atoms with D2O in a Broida-type oven. Rotational and fine structure parameters determined for the AË2Î (000) state of BaOD yielded a spin-orbit coupling constant A significantly different from the corresponding value for BaOH (â¼605.8 cmâ1 versus 560.1 cmâ1). Î-doubling constants for the AË2Î state were observed to be in poor agreement with the predictions of the pure precession model for the interaction between the AË2Î and the BË2Σ+ states in BaOD. Explanations for the unusual spin-orbit splitting and apparent failure of the pure precession and unique perturber models in BaOH and BaOD are discussed, with particular reference to possible global and local perturbations arising from vibrationally excited bands of the AËâ²2Î state.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
J.D. Tandy, J.-G. Wang, P.F. Bernath,