Rotationally Resolved LIF Spectra of the A2Σ+–X2Πr Transition of Jet-Cooled 74Ge35Cl
✍ Scribed by David A Hostutler; Dennis J Clouthier; Ghassan Wannous
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 134 KB
- Volume
- 215
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
The A 2 + -X 2 r band system of 74 Ge 35 Cl has been rotationally resolved for the first time using isotopically enriched 74 GeCl 4 as the precursor in a pulsed discharge jet experiment. The previous vibrational analysis of W. J. Balfour and K. S. Chandrasekhar (1986, J. Phys. B 19, L187-L191) has been verified from the observed isotopic splittings of both the chlorine and germanium isotopomers. The 2 1/2 components of three vibronic bands have been rotationally analyzed leading to revised values for the ground state rotational constant B 0 = 0.154165(35) cm -1 and the lambda-doubling constant p 0 = 6.560(97) × 10 -3 cm -1 . We have experimentally determined the value of B e = 0.118710(24) cm -1 for the A 2 + state leading to an excited state equilibrium bond length of 2.44581(25) Å.