Fourier Transform Emission Spectroscopy of the [10.3]3Φi-X3Φi System of CoF

✍ Scribed by R.S. Ram; P.F. Bernath; S.P. Davis

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 956 KB
• Volume: 173
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1995.1226

✦ Synopsis

The electronic emission spectrum of (\mathrm{CoF}) was observed in the (820 \mathrm{~nm}) to (3.5 \mu \mathrm{m}) spectral region using a Fourier transform spectrometer. The bands were excited in a carbon tube furnace by the reaction of cobalt metal vapor and (\mathrm{CF}{4}) at a temperature of about (2300^{\circ} \mathrm{C}). The observed bands in the 9000-12500 cm 10340,10289 , and (10161 \mathrm{~cm}^{-1}) assigned as the ({ }^{3} \Phi{4}{ }^{3} \Phi_{4},{ }^{3} \Phi_{3}-{ }^{3} \Phi_{3}), and ({ }^{3} \Phi_{2}{ }^{3} \Phi_{2}) subbands of a new ([10.3]^{3} \boldsymbol{\Phi}{i}-X^{3} \boldsymbol{\Phi}{i}) electronic transition, respectively. The rotational analysis of (12{ }^{3} \boldsymbol{\Phi}{4}{ }^{3} \boldsymbol{\Phi}{4}) bands, (5^{3} \Phi_{3}-{ }^{3} \Phi_{3}) bands, and (3{ }^{3} \Phi_{2}-{ }^{3} \Phi_{2}) bands has been performed, and effective equilibrium constants for each spin component have been extracted. The equilibrium vibrational and rotational constants for the lowest (X^{3} \Phi_{4}) spin component are: (\omega_{\mathrm{e}}=678.1817(19) \mathrm{cm}^{-1}, \omega_{\mathrm{e}} x_{\mathrm{e}}=2.73967(84)) (\mathrm{cm}^{-1}, B_{\mathrm{c}}=0.3894797(34) \mathrm{cm}^{-1}, \alpha_{\mathrm{c}}=0.0025984(45) \mathrm{cm}^{-1}), and (r_{\mathrm{c}}=1.735698(8) \AA). (C) 1995 Academic Press, Inc.