Transition probabilities for the B 1 + -X 1 + and the B 1 + -A 1 electronic systems are presented for v = 0-4 and J = 0-150 in each electronic state. The functional form of the electronic transition moment for the B-X transition is taken from published ab initio results. The B-A moment is assumed to
The Electronic Spectrum of Germanium Monosulfide: Rotational Structure in the A1Π–X1Σ+ Transition in 70GeS
✍ Scribed by B.J. Shetty; Sunanda Krishnakumar; T.K. Balasubramanian
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 208 KB
- Volume
- 207
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
The emission spectrum of the specific isotopomer 70 GeS was excited in a microwave (2450-MHz) discharge and the A 1 -X 1 + transition (270-430 nm) was photographed under high resolution on a 10.6-m Ebert grating spectrograph. The rotational analysis of 43 bands led to the determination of accurate vibrational and rotational constants. Making use of these constants, the potential energy curves for the A 1 and X 1 + states were generated by the RKR method and Franck-Condon factors and r -centroids were computed for the bands analyzed. The present extensive high-resolution study has revealed only a few localized perturbations in the A 1 (v = 4, 5, 9) vibronic states, which contrasts with the situation in the isovalent molecules such as GeO, SiS, and SiSe.
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