Browsing Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999 by Title
Now showing results 3164-3183 of 3912
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SELF-BROADENING COEFFICIENTS FROM FTIR MEASUREMENTS OF $H_{2}O$
Keppler, Karen A.; Rao, K. Narahari; Tyuterev, Vl. G.; Mikhailenko, S. N.; Mellau, Georg C.; Klee, S.; Winnewisser, B. P.; Winnewisser, M. ( 1996 )Self-broadening parameters have been extracted for selected transitions in the $\nu_{1}, 2\nu_{2}$ and $\nu_{3}$ bands of water vapor observed between $2500-4200 cm^{-1}$. The $H_{2}O$ spectrum at room temperature in ... -
SELF-GROADENED WATER FROM 5 TO 15 MICRONS
Toth, R. A.; Brown, L. R. ( 1997 )The self-broadened halfwidths and pressure shifts o water have been obtained using the McMath Fourier transform spectrometer at Kitt Peak National Observatory/Solar National Observatory. Over 1200 vibration-rotation ... -
SEMI EMPIRICAL AND AB-INITIO CALCULATIONS ON SOME BINARY LIQUID MIXTURES
Sathyan, N.; Santhanam, V.; Sobhanadri, J. ( 1992 )Theoretical conformation studies are carried out on the following binary mixtures of weakly bonded complexes: Formamide - Water, Formamide - Methanol. Acetonitrile - Water and Acetonitrile Methanol. Dipole moment and ... -
SEMICONDUCTOR NANOCRYSTALLITES AS ARTIFICIAL ATOMS: A SPECTROSCOPIC APPROACH
Bawendi, M. G. ( 1997 )Nanometer size crystallites of semiconductors are often called ``quantum dots” or ``artificial atoms” because of their predicted discrete electronic states and delocalized wavefunctions. The emerging spectrocopic picture ... -
A SEMIEMPIRICAL PES FOR Kr-HS
Korambath, Prakashan P.; Wu, Xudong T.; Hayes, Edward F.; Carter, Christopher C.; Miller, Terry A. ( 1996 )A semiempirical portential energy surface for Kr-HS van der Waals type molecule will be presented. The nature of the PES is similar to that proposed for Ar-HO by Bowman and co-workers [1]. The parameters in the Ar-HO surface ... -
SENSITIVITY LIMITS OF INTRACAVITY ABSORPTION SPECTROSCOPY
Baev, V. M.; Sierks, J.; Latz, T.; Boehm, R.; Huennekens, J.; Toschek, P. E. ( 1996 )Emission spectra of multimode lasers are very sensitive to selective absorption in the cavity. The sensitivity of measurements grows with the laser pulse duration t. The absorption signal in the laser spectrum is equivalent ... -
SEP Spectroscopy of the $\tilde{B}^{2}A'-\tilde{X}^{2}A'$ System of Jet-cooled HCO and DCO: Vibrational Structure of the $\tilde{X}^{2}A'$ State Near and Above Dissociation
Dunlop, James R.; Tobiason, J. D.; Rohlfing, Eric A. ( 1994 )The formyl radical, HCO, is an important combustion intermediate that has been studied by a variety of spectroscopic techniques. Despite this, the ground-state potential energy surface and vibrational structure near the ... -
SEP-DFWM STUDIES OF JET-COOLED $S_{2}O$: EXPLORATION OF THE GROUND STATE POTENTIAL ENERGY HYPERSURFACE NEAR 1 EV OF VIBRATIONAL ENERGY
Dupré, Patrick; Zhang, Q.; Müller, Thomas; Vaccaro, P. H. ( 1995 )The $\tilde{X}_{1} A^{\prime}$ ground electronic potential surface of the transient disulfur monoxide $(S_{2}O)$ molecule has been examined in regions corresponding to roughly 1 eV of vibrational excitation. $S_{2}O$ ... -
SEPARABILITY OF SPIN-ORBIT AND CORRELATION ENERGIES FOR THE SIXTH-ROW MAIN GROUP HYDRIDE GROUND STATES
Dilabio, G. A.; Christiansen, P. A. ( 1998 )The spin-orbit energy contributions to the ground state potential energy curves for the main group hydrides, TIH through AtH, are estimated by differencing multireference, single promotion, configuration interaction (MRS-CI) ... -
SEQUENTIAL CLUSTERING OF HCl IN ARGON: NEAR INFRARED SPECTRA OF $Ar_{2}HCl$ AND $Ar_{3}HCl$
Anderson, David T.; Davis, Scott; Nesbitt, David J. ( 1997 )High resolution near infrared spectra of the $v_{HCL} =1\leftarrow 0$ fundamental stretch in and $Ar_{2}HCl$ and $Ar_{3}HCl$ have been characterized using a slit-jet infrared spectrometer. Analysis of the jet cooled, ... -
THE SERS SPECTRA OF BILIRUBIN AND BILIVERDIN
Hu, Jun; Sheng, Rongsheng; Xu, Zhisan; Zeng, Yun E. ( 1993 )The SERS spectra of oxidized bilirubin (oxidized by oxygen in alikline solution) and biliverdin were obtained. The similarity of these two SERS spectra demonstrated that the bilirubin was oxidised to biliverdin by oxygen ... -
THE SERS STUDIES OF 8-HYDROXYQUINOLINE(I) COMPLEXED WITH ALUMINIUM($\Pi$) AND IRON($\Pi$)
Hu, Jun; Sheng, Rongsheng; Xu, Zhisan; Zeng, Yun E. ( 1993 )The 8-hydroxyquinoline was used as a analysis reagent in spectrophotometric study. It could complex with many transition metal ions, such as aluminium, iron, copper and nickel. Here, the SERS spectra of 8-hydroxyquinoline ... -
A Setup for Fourier-Transform Absorption and Emission Spectroscopies of Matrix-Isolated Transients
Thoma, A.; Lammers, A.; Smith, A. M.; Wurfel, B. E.; Agreiter, J.; Caspary, N.; Lorenz, M.; Bondybey, V. E. ( 1995 )A Bruker IFS HR 120 Fourier-Transform Spectrometer (FTS) is combined with three cryostats for absorption $(500-30000 cm^{-1})$ and emission $(1800-30000 cm^{-1})$ measurements on matrix-isolated $transients^{a,b}$. The ... -
$SF_{6}$ GAS INTEGRATED INTENSITIES AS A FUNCTION OF DENSITY
Delaye, Corinne T.; Thomas, Michael E. ( 1991 )Index of refraction measurements on $SF_{6}$ at microwave and visible frequencies suggest that collision-induced-absorption bands (CIA) should be present in $SF_{6}$, in addition to the ir-allowed bands. This would explain ... -
SHIFTS OF $H_{2}O$ SPECTRAL LINES IN $\nu_{1} + 3\nu_{3}$ VIBRATIONAL BAND INDUCED BY THE PRESSURE OF NOBLE GASES
Bykov, A. D.; Lazarev, V. V.; Ponomarev, Yu. N.; Stroinova, V. N.; Tikhomirov, B. A. ( 1994 )The $H_{2}O$ absorption lines shifts induced by pressure of noble gases like He, Ne, Ar, Kr, and Xe were investigated in the visible spectral range near 0.7 mm using the dual-channel photoacoustic laser spectrometer with ... -
SHORT-WAVELENGTH (30 TO $150 \mu m$) OPTICALLY PUMPED LASER LINES IN A METHANOL LASER
Vasconcellos, E. C. C.; Zink, L. R.; Evenson, K. M. ( 1998 )A new short-wavelength far-infrared $laser^{a}$ is used to generate optically pumped far-infrared laser radiation in the wavelength range 30 to $150 \mu m$ in methanol. The large-amplitude torsional motion in methanol ... -
$Si_{3}-Si_{7}$, EXPERIMENTAL AND THEORETICAL INFRARED SPECTRA.
Li, S.; Van Zee, R. J.; Weltner, W., Jr.; Raghavachari, Krishnan ( 1995 )Silicon clusters were prepared by laser vaporization and observed by FTIR in neon, argon, and krypton matrices at 4 K. Vibrational frequencies in the $400-600 cm^{-1}$ region were assigned to $Si_{3}-Si_{7}$ on the basis ... -
SIDEBAND SPECTROSCOPY IN THE VISIBLE WITH A TUNABLE MODULATOR
Haring, U.; Kreiner, W. A.; Magerl, G.; Schupita, W. ( 1995 )Phase modulation at microwave frequencies has been applied to the radiation of a cw ring dye laser in order to observe sideband spectra. In order to do this use was made of the electrooptic effect in a lithium tantalate ... -
$SiH_{2}$ ELECTRONIC STATES OBSERVED BY 2+1 AND 3+1 RESONANCE ENHANCED MULTIPHOTON IONIZATION SPECTROSCOPY.
Johnson, Russell D., III; Hudgens, J. W. ( 1990 )Electronic spectra of $SiH_{3}$ (sllyl radical) have been observed previously1 by $2+1$ Resonance Enhanced Multiphoton Ionization (REMPI) Spectroscopy. Predominantly transitions from the silicon $3p_{1}$ orbital (the HOMO) ... -
A SIMPLE AND FAST SPEED-DEPENDENT LINE SHAPE MODEL
Berman, Richard; Sinclair, Peter M.; May, A. D.; Drummond, J. R. ( 1998 )With increasing resolution and signal to noise, high resolution spectroscopy studies have found it necessary to use increasingly accurate line shape models to explain the observed spectral profiles. Beyond the Lorentz and ...