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New Band Systems of the YbCl Molecule

✍ Scribed by K.N. Uttam; R. Gopal; M.M. Joshi

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 425 KB
Volume: 185
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1997.7344

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✦ Synopsis

The thermal emission spectrum of the YbCl molecule, lying in the 3800 -6000 A ˚region, has been photographed for the first time at a reciprocal linear dispersion of 7.3 A ˚/mm. More than 196 violet degraded bands have been recorded on a 2-m plane grating spectrograph in first order and assigned to the vibrational schemes of six systems, viz. A , B 1 , B 2 , C 1 , C 2 , and D . While the systems A , C 1 , C 2 , and D consist of single headed bands, the systems B 1 and B 2 consist of double headed bands. The vibrational analysis performed suggests that these systems arise from the ground state ( 2 S / ) of YbCl molecule. The systems C 1 -X , C 2 -X , and D -X have been analyzed for the first time. More precise vibrational constants for the relevant states have been determined.

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