A Hund's Case (a) Analysis of the [18.8]3Φi–X3Φi Electronic Transition of CoF

✍ Scribed by A.G. Adam; W.D. Hamilton

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 77 KB
• Volume: 206
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.2000.8292

✦ Synopsis

We have recently observed a weak electronic subband near 513 nm in the electronic spectrum of cobalt monofluoride. A rotational analysis has led to its identification as a 3 3 -X 3 4 subband where = -1 and = -1. This critical datum has been used in combination with our previously published data (A. G. Adam et al., 1994, Chem. Phys. Lett. 230, 82) to obtain a Hund's case (a) analysis for the [18.8] 3 i -X 3 i transition of CoF. The spectroscopic constants and electronic states of CoF are compared to those of CoH and Co + . Two distinct excited 3 electronic state vibrational progressions have also been identified in the CoF spectra. The band positions and rotational constants have been used to calculate equilibrium constants for the excited 3 states. The two electronic transitions are identified as the K 3 i -X 3 i and L 3 i -X 3 i transitions based on comparisons with CoH.