ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The (2) 3Πg–A 3Πu system of B2 has been characterized for the first time. A full rotational analysis of the 0–0, 0–1, 1–0, and 1–3 bands has been performed. The molecular parameters are compared with recent high level theoretical calculations and show good agreement. An extensive perturbation of the upper (2) 3Πg state by the (1) 3Πg state was observed. This was most clearly evident for v=0 of the (2) 3Πg state for the 10B11B isotopomer, which is split into two components by the interaction with v=7 of (1) 3Πg. The perturbation interaction exhibited a significant rotational dependence, which was interpreted as arising from a change in the Franck–Condon factors as the rotational contribution to the potential changed. A weak local perturbation was observed in v=1 of the A 3Πu state from a crossing with v=2 of the a 5Σ−u state.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.466838
