First investigations of the B2A′ 1-X2B2 system of Na3 at rotational resolution are reported. Using resonant two-photon ionization and optical-optical double resonance spectroscopy, two vibronic bands were assigned and rotationally analyzed. In the B state, the three sodium nuclei perform a nearly free pseudorotational motion in the moat of a pseudo-Jahn-Teller potential that is characterized by a vibronic angular momentum quantum number;'. In states with; > 0, each rotational level is split by Coriolis interaction. Rotational and Coriolis coupling parameters were determined and are discussed in terms of the dynamics of the vibronic coupling in this floppy molecule.
|Number of pages||8|
|Journal||Canadian Journal of Physics|
|Publication status||Published - 1 Jan 1994|
ASJC Scopus subject areas
- Physics and Astronomy(all)