title: Microwave Rotational Spectral Study of SO2-CO.
abstract: The microwave spectrum of the molecular complex of sulfur dioxide (SO2) with carbon monoxide (CO) has been studied with a pulsed-beam Fourier Transform Microwave Spectrometer (FTMW) from a pair of gas samples of 1 % by volume of SO2and CO in Ar, and introduced via separate capillary inputs to the flow nozzle. The frequency coverage was about 7 GHz to 16 GHz for various isotopomers. The molecular structure was determined with the aid of spectral studies of isotopically substituted monomers containing13C,18O and34S. The rotational analyses provide the rotational and centrifugal distortion constants for all of the isotopomers analyzed. The structure determination is compared to detailedab initiostructural calculations. The electric dipole moment components along thea- andc-axis were determined from Stark effect measurements.
authors.affiliation: National Institute of Standards and Technology, Sensor Science Division, 100 Bureau Dr., Gaithersburg, MD 20899-8441.
authors.forename: F J
authors.initials: FJ
authors.lastname: Lovas
authors.affiliation: National Institute of Standards and Technology, Chemical Sciences Division, 100 Bureau Dr., Gaithersburg, MD 20899-8320. Current address: St. Norbert College, 100 Grant St., De Pere, WI 54115.
authors.forename: M K
authors.initials: MK
authors.lastname: Sprague
keywords: carbon monoxide; dimer; microwave spectrum; rotational spectrum; structure; sulfur dioxide