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OODR Spectroscopy of Na3and Rotational Analysis of a Vibrationally Excited Level in theÃState

✍ Scribed by Th. Stoll; E. Tiemann; D. Wendlandt

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
129 KB
Volume
174
Category
Article
ISSN
0022-2852

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✦ Synopsis

Using optical-optical double resonance techniques the rotational assignment of the A ˜2A 2 -X ˜2B 2 system of Na 3 could be extended to transitions involving vibrationally excited levels in the A state. About 30 measured transition frequencies were fitted, using the Hamiltonian of an asymmetric rotor and including spin-rotation interaction. The averaged geometry of the sodium trimer in the vibrationally excited A ˜state was derived from the rotational constants. Vibrational classification of the observed A ˜-X ˜bands from a Jahn-Teller analysis by Dugourd et al. (J. Chem. Phys. 93, 2322) is discussed.

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