Spectroscopy of CrF: Extension of Rotational Analysis of the A6Σ+-X6Σ+ Band System

✍ Scribed by R. Koivisto; S. Wallin; O. Launila

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 251 KB
• Volume: 172
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1995.1194

✦ Synopsis

An extension of the rotational analysis of the (A^{6} \Sigma^{+}-X^{6} \Sigma^{+})band system of (\mathrm{CrF}) has been carried out, using new high-resolution data in the (8500-\mathrm{cm}^{-1}) region. The recorded region also includes the (B^{6} \Pi-X^{6} \Sigma^{+})system at (8000 \mathrm{~cm}^{-1}). The (A^{6} \Sigma^{+}-X^{6} \Sigma^{+})data now include the ((0,2)) and ((1,3)) bands, as well as fragments of the ((2,4)) band. The extended analysis has resulted in a substantially improved set of molecular parameters for the (X^{6} \Sigma^{+})state. A previous interpretation of the (A^{6} \Sigma^{+}(v=0)) level local perturbation pattern has also been discussed and partly revised. Preliminary parameters have been determined for the (B^{6} I I) state through comparisons of synthetically generated (B^{6} \Pi-X^{6} \Sigma^{+})spectra with observed ((0,0)) and ((1,0)) bands of this transition. These parameters indicate that at least a part of the observed local perturbations in the (A^{6} \Sigma^{+}(v=0)) level can probably be attributed to interaction with the (v=3) level of the (B^{6}) II state. (c) 1995 Academic Press, Inc.