Browsing Abstracts of OSU International Symposium on Molecular Spectroscopy 19901999 by Title
Now showing results 28462865 of 3912

QUADRATIC HERMANWALLIS CORRECTION FACTORS FOR SYMMETRICTOP MOLECULES. APPLICATION TO THE $H_{3}^{+}$ ION.
Watson, J. K. G. ( 1990 )The HermanWallis correction factors to the intensities of allowed rovibronic transitions of symmetrictop molecules can be written in the form $F = \{1 + A_{1}^{j} mj + A_{1}^{k} m_{K} + A_{2}^{JJ(Q)}\sqrt{[J(J + 1)}  ... 
QUADRUPOLE COUPLING IN THE MICROWAVE SPECTRA OF $CF_{2}NCl$ AND ITS ISOTOPIC SPECIES
Groner, P. ( 1995 )The analysis of the microwave spectra of $^{12}CF_{2}{^{15}NCl}$ resulted in a quadrupole coupling tensor with $\chi_{ab} = 64.54(15) MHz$ and $\chi_{x} = 104.18(13) MHz$ for $^{35}Cl$. The results from the analysis for ... 
QUADRUPOLE DISSOCIATION DYNAMICS OF MOLECULAR HYDROGEN
Arce, J. C.; Langhoff, P. W. ( 1992 )Studies are reported of the quadrupole excitation and dissociation cross sections of molecular hydrogen in its ground electronic state. Explicit solutions of the timedependent Schr\""{o}dinger equation constructed with ... 
QUADRUPOLEFIELDENHANCED IRIR DOUBLE RESONANCE: LARGE AMPLITUDE MOTIONS AND IVR IN PROPARGYL AMINE
Andrews, Anne M.; Fraser, G. T.; Pate, Brooks H. ( 1993 )The acetylenic CH stretch of propargyl amine $(HC=CCH2NH2)$ has been measured using the electric resonance optothermal spectrometer at NIST. This region of the spectrum shows extensive vibrational mode couplings characterisitic ... 
QUALITATIVE APPROACH TO MOLECULAR DYNAMICS: NONLINEAR NORMAL MODES AND LOCALIZED VIBRATIONS
Sadovskii, D.; Zhilinskii, B. ( 1992 )The concept of a simplest Hamiltonian based on the topological properties of a reduced phase space stratified under the action of the symmetry group of the problem leads to the introduction of nonlinear normal modes, the ... 
QUANTITATIVE ABSORPTION PARAMETERS FOR LINES IN THE 790 NM BAND OF WATER OBTAINED USING INTRACAVITY LASER SPECTROSCOPY WITH A Ti:SAPPHIRE LASER
Kalmar, Balazs L.; O'Brien, James J. ( 1996 )The intracavity laser spectroscopy (ILS) technique has been shown to be a very sensitive method for observing absorption spectra. By considering quantitative results (line strengths and pressurebroadening coefficients) ... 
QUANTITATIVE INTENSITY MEASUREMENTS IN THE USE OF INFRARED KINETIC SPECTROSCOPY TO INVESTIGATE COMBUSTION RADICAL KINETICS
Curl, R. F., Jr.; Glass, Graham P. ( 1999 )Infrared kinetic spectroscopy is a powerful tool for investigating the kinetics of the free radical reactions of importance in combustion. In the simplest case of pseudo first order kinetic measurements, the quantitative ... 
QUANTITATIVE SPECTROSCOPY WITH FOURIER TRANSFORM INSTRUMENTS
Johns, J. W. C. ( 1994 )The accuracy of measurements, particularly of intensities, using Fourier transform spectrometers has improved greatly over the last ten years. It is now possible to make intensity measurements which are reliable to about ... 
QUANTITIVE ABSORPTION MEASUREMENTS USING CAVITY RING DOWN SPECTROSCOPY
Van Zee, R. D.; Looney, J. P.; Hodges, J. T. ( 1996 )This paper investigates the effects of cavity design and laser bandwidth on quantitative cavity ringdown spectroscopy using the $R$ transitions of the $X(v=0)$ to $b(v=0)$ band of molecular oxygen. It is found that failure ... 
QUANTUM AND THREEBODY EFFECTS ON THE SIMULATED IR SPECTRA OF $SF_{6}(RARE GAS)_{n}$ CLUSTERS
Chartrand, Darryl J.; Le Roy, Robert J. ( 1993 )A model developed by Eichenauer and Le Roy predicts the shift of the $v_{3}$ band of $SF_{6}$ perturbed by neighbouring atoms in a cluster, as a function of the number of perturbers and their relative $positions.^{1}$ When ... 
QUANTUM BEAT SPECTROSCOPY OF DIATOMIC TRANSIENTS
Arnold, Steven J.; Hamilton, Peter A. ( 1999 )Quantum beat spectroscopy is a method for subDoppler spectroscopy which provides lifetime limited linewidths and so is ideally suited to the precise measurement (typically +/ 0.1 MHz) of small splittings $(<100 MHz)$. ... 
QUANTUM CHEMICAL CALCULATION OF THE LOWEST ELECTRONIC STATES OF KRb AND TRANSITION PROPERTIES
Leininger, T.; Jeung, G. H. ( 1993 )The excited states of the KRb diatomic are little known. All electronic states of KRb dissociating into the $5s + 4s, 5_{p} + 4s, 5s + 4p$, and $4d + 4s$ are studied with quantum chemical calculations. Smallcore relativistic ... 
QUANTUM MECHANICAL TREATMENT OF TWO INTERACTING RIGID ROTORS: APPLICATION TO $(HCl)_{2}$
Schuder, Michael D.; Nesbitt, David J. ( 1990 )A simplified approach to the quantum mechanical description of two interacting rigid rotors is presented. The procedure is similar to that recently developed by $Clary^{1}$ with the intermolecular separation (R) being fixed ... 
QUANTUM MONTE CARLO CALCULATION OF SELECTED PROPERTIES OF PROPARGYL RADICAL AND OTHER HYDROCARBON SYSTEMS.
Harkless, John A. W.; Lester, William A., Jr. ( 1998 )We apply the quantum Monte Carlo method with effective core potentials to the propargyl radical, $C_{3}H_{3}$, and its cation and anion. Properties computed and compared with other theoretical and experimental results ... 
QUANTUM NUMBER AND TEMPERATURE DEPENDENCE OF THE LINE BROADENING IN THE $\nu_{1}$ AND $\nu_{3}$ BANDS OF $SO_{2}$
Sumpf, B.; Fleischmann, O.; Kissel, A.; Schöne, M.; Kronfeldt, H. D. ( 1995 )We present results on the line broadening in the $\nu_{1}$ and $\nu_{3}$ bands of $SO_{2}$, studied with a threechannel diode laser spectrometer. We obtained the pressure broadening coefficients $\gamma$ for the perturbers ... 
Quantum Rotor Dynamics Near the Dissociation Limit: High Resolution Spectroscopy and Calculations for $H_{2}HCl$
Anderson, David T.; Schuder, Michael D.; Nesbitt, David J. ( 1995 )High resolution near infrared spectra of bands built on the $v_{HCl} = 1 \leftarrow 0$ stretch in $H_{2}HCl$ are recorded between $2870  2930 cm^{1}$ using a slitjet infrared spectrometer. Only transitions that access ... 
QUANTUM SYMMETRY RESTRICTIONS IN STATETOSTATE INELASTIC SCATTERING FROM $S_{1}$ GLYOXAL
Clegg, Samuel M.; Parmenter, C. S. ( 1999 )A laser pumpdispersed fluorescence probe approach has been used to monitor statetostate inelastic scattering in $S_{1} (^{1}A_{u})$ transglyoxal (CHOCHO) by a variety of collisionpartners. These experiments have been ... 
QUASICW CAVITY RINGDOWN SPECTROSCOPY
Cormier, John G.; Drummond, J. R. ( 1998 )We have developed a quasiCW cavity ringdown experiment in order to measure water vapour continuum absorption in the $911\mu m$ region of the infrared. The experiment relies on a line tunable $CO_{2}$ laser and an ... 
QUASILINEARITY IN HCCN: THE $\nu_{2}$ SPECTRUM
Eckhoff, W. C.; Miller, Charles E.; Curl, R. F., Jr. ( 1994 )The high resolution infrared spectrum of the quasilinear molecule HCCN in the region of its $\nu_{2}$ CCN stretching fundamental was recently measured, At least six separate vibrational origins have been positively ... 
THE QUASILINEAR NATURE OF SOME SIMPLE COVALENT FULMINATES XCNO, AS REVEALED BY ROTATIONAL SPECTROSCOPY IN THE MMW RANGE
Lichau, Holger; Winnewisser, B. P.; Winnewisser, M.; Gillies, C. W.; Gillies, J. Z. ( 1998 )The rotational spectra of the unstable molecules BrCNO, ClCNO, and NCCNO have been recorded at room temperature using three backward wave oscillators that cover the spectral range from 52 to 179 GHz. In addition, the ...