Isotopic and Vibrational Satellites in the Rotational Spectrum of Carbonyl Chloride Fluoride

✍ Scribed by N. Heineking; W. Jager; M.C.L. Gerry

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 565 KB
• Volume: 158
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1993.1055

✦ Synopsis

The rotational spectra of four isotopomers of carbonyl chloride fluoride, (\mathrm{FCOCl}), including the chlorine-37, carbon-13, and oxygen-18 satellites in natural abundance, have been observed with a cavity pulsed microwave Fourier transform spectrometer. In addition, all three bending vibrational satellites have been detected for the normal isotopomer, and their vibration-rotation interaction constants determined, along with their respective vibrational temperatures in the jet. The ground state average ( (r_{z}) ) and equilibrium ( (r_{e}) ) structures have been estimated. In all cases chlorine and fluorine hyperfine structures have been resolved, allowing determination of the quadrupole and spin-rotation coupling constants. From the variation of the chlorine quadrupole coupling constants with isotopomer (in particular, substitution with oxygen-18), the principal values of the quadrupole coupling tensor and its position in the bond axis system have been evaluated. (1993 Academic Press. Inc.