Nu sub 1 plus nu sub 3 combination band of SO2

The infrared-active vibration-rotation combination band nu sub 1 + nu sub 3 of sulfur dioxide was measured with moderately high spectral resolution. Quantum number identifications of spectral lines were made by comparison with theoretically computed spectra which include the effects of centrifugal distortion. Relative line intensities were also calculated. The band center for nu sub 1 + nu sub 3 was determined to be 2499.60 + or - 0.10/cm

Fundamental bands of S(32)O2(16)

The infrared-active vibration-rotation fundamentals of sulfur dioxide were measured with moderately high spectral resolution. Quantum number assignments were made for spectral lines from J = O to 57, by comparison with theoretically computed spectra which include the effects of centrifugal distortion. The following values for the band centers were determined: nu sub 1 = 1151.65 + or - 0.10/cm, nu sub 2 = 517.75 + or - 0.10/cm, and nu sub 3 = 1362.00 + or - 0.10/cm. Intensities of the observed lines have also been computed. Dipole moment derivatives were obtained

STUDIES OF INFRARED ABSORPTION SPECTRA OF GERMANE

Author Institution: Department of Chemistry and Department of Physics and Astronomy, The University of TennesseeInfrared absorption spectra of $GeH_{4}$ over the wave number range 250 to $5000 cm^{-1}$ have been observed with resolution of 0.2 to $0.5 cm^{-1}$. Several new overtone and combination bands have been identified. Preliminary values of line positions, intesities, and spectroscopic constants will be presented. Possible applications of these results to the atmosphere of the planet Jupiter will be discussed

ANALYSIS OF 2ν4\nu_{4} OF CH4CH_{4}

$^{1}$ K. Fox, J. Mol. Spectrosc. 9, 381 (1962). $^{2}$ J. Moret-Bailly, Can. Phys. 15, 237 (1961). This research was supported, in part, by the U.S. Air Force Cambridge Research Laboratories. Portions of this research were presented by R. J. Corice, JR., to the Graduate Council of The University of Tennessee, Knoxville, in partial fulfillment of the requirements for the degree Master of Science. Present address of R. J. Corice, JR.: Hinds Junior College, Raymonds, Mississippi, 39154.""Author Institution: University of Tennessee Hinds Junior College,; University of DijonSpectra of the 2$\nu_{4}$ overtone of methane, measured at $100^{\circ} K$ and room temperature, were analyzed using the third-order theory of $Fox^{1}$ for scalar perturbations and the formalism of Moret-$Bailly,^{2}$ with appropriate modifications, for tensor perturbations and resultant tetrahedral fine-structure splittings. Theory and experiment were in qualitatively good agreement from 2520 to 2610 $cm^{-1}$. New values for excited-state molecular constants were determined. From measured line intensities, a band intensity of (7.50 $\pm$ 0.97) $\times$ 10$^{-20}$ $cm^{-1}$ (molec. $cm^{-2}$)$^{-1}$ at STP was theoretically projected. Transition dipole moments were evaluated, and their quantum-number dependence was investigated