Browsing Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999 by Title
Now showing results 3707-3726 of 3912
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THE $v_{2}$ AND $v_{5}$ INFRARED BANDS OF $H_{3}Si^{79}Br$
Ceausu, A.; Graner, G.; Bürger, H.; Pracna, P. ( 1995 )The $v_{2} (A_{1})$ and $v_{5}$ (E) fundamental bands of isotopically pure $H_{3} Si^{79}$ Br, centered at 929.752 and $946.427 cm^{-1}$ respectively have been analyzed from a high resolution Fourier transform spectrum in ... -
The $V_{3} = 1$ vibrational level In $C_{2}H_{2}$
Auwera, J. Vander; Hurtmans, D.; Carleer, M.; Herman, M. ( 1992 )We have used a Bruker Fourier transform interferometer IFS120HR to record spectra at high resolution of various bands reaching the entire set of levels interacting with $V_{3}$ - 1 through Fermi or l-type couplings. Their ... -
THE $v_{3}$ AND $v_{1}$ BANDS OF THE $^{17}O^{16}O^{16}O$ AND $^{16}O^{17}O^{18}O$ IS0TOPIC SPECIES OF OZONE: LINE POSITIONS AND INTENSITIES,
Perrin, A.; Heyard, M.; Flaud, J.- M.; Camy-Peyret, C.; Rinsland, C. P.; Smith, M. A. H.; Devi, V. Malathy ( 1992 )Room temperature absorption spectra of $^{17}O$-enriched ozone have been recorded around 10 $\mu$m at $0.005 cm^{-1}$ resolution with the Fourier transform spectrometer located in the McMath solar telescope on Kitt Peak. ... -
The $v_{3}$, $2v_{2}$ and $v_{1}$ interacting bands of $^{14}N^{16}O_{2}$.
Perrin, A.; Vasserot, A. M.; Camy-Peyret, C.; Flaud, J.- M.; Goldman, A.; Guelachvili, G. ( 1991 )Up to now, except for isolated $states^{1,2}$, the spin-rotation interaction in $NO_{2}$ has been treated using a perturbation $method^{3}$. In the present work, an extensive analysis of $NO_{2}$ Fourier transform spectra ... -
The $v_{4}$ band of Carbonyl fluoride.
Flaud, J.- M.; Camy-Peyret, C.; Goldman, A.; Rinsland, C. P.; Blatherwick, R. D.; Murcray, F. J. ( 1991 )$COF_{2}$ which has been postulated to be an important intermediate in the decomposition of chlorofluorocarbons in the upper atmosphere has been observed in the stratosphere through the identification of absorption features ... -
VACUUM TRANSFER OPTICS SYSTEM FOR INTERFACING A 4m WHITE-TYPE CELL TO A COMMERCIAL FTIR SPECTROMETER
Keppler, Karen A.; Winnewisser, M.; Winnewisser, B. P.; Rao, K. Narahari ( 1992 )The combination of a 4m base length White-type cell and a commercial FTIR Spectrometer like the Bruker IFS 120 HR facilitates the observation of weak spectra with high resolution. It was previously difficult to obtain data ... -
VACUUM ULTRAVIOLET FLUORESCENCE DETECTION OF TWO-PHOTON EXCITATION SPECTRA OF $I_{2}$ RYDBERG STATES
Rafferty, B. D.; Gold, L. P.; Bernheim, R. A. ( 1994 )Vacuum ultraviolet fluorescence of iodine has been used to detect excitations through the $73384 cm^{-1}$ to $60150 cm^{-1}$ energy range. Eleven vibrational progressions corresponding to gerade Rydberg states of molecular ... -
VACUUM ULTRAVIOLET SPECTRUM OBSERVED IN THE REACTION OF FLUORINE ATOMS AND CYANAMIDE
Fleming, P. E.; Mathews, C. W. ( 1990 )Fluorine atoms, produced in a microwave discharge in fluorine-containing precursors, are reacted with $H_{2}NCN$ and the products of the reaction are probed by absorption spectroscopy. A system of sharply defined bands ... -
VALENCE AND RYDBERG STATES OF NH. AN AB-INITIO MRD-CI STUDY.
Vázquez, G. J.; Amero, J. M. ( 1995 )We report extensive ab-initio MRD-CI electronic structure calculations of the imidogen radical NH. Potential energy curves of all valence and many Rydberg states were calculated. Thirty nine states were computed including ... -
A VAN DER WAALS COMPLEX STUDY OF THE ORIENTATION DEPENDENCE IN COLLISIONAL RELAXATION OF GLYOXAL($S_{1}$) BY Ar
Lapierre, Luc; Dai, H. L. ( 1991 )Van der Waals forces can be used to control the orientation of two molecules in a collisional process. In the collision induced intersystem crossing process $Ar + C_{2}H_{2}O_{2}(S_{1}) \rightarrow Ar + C_{2}H_{2}O_{2}(T_{1})_+$ ... -
THE VAN DER WAALS TRIMER, $AR_{2}$KETENE
Gillies, C. W.; Gillies, J. Z. ( 1998 )The rotational spectrum of the oblate asymmetric top van der Waals trimer, $Ar_{2}$-ketene, was obtained with a pulsed-beam Fourier-transform microwave spectrometer. Two tunnelling states arising from internal rotation of ... -
VAPOR-PHASE RAMAN SPECTRA AND BAND CONTOURS OF MOLECULES WITH LOW VOLATILITY
Laane, J.; Sakurai, S.; Haller, Kristjan; Morris, K.; Bondoc, E.; Chiang, Whe-Yi; Del Rosario, A.; Arp, Zane; Autrey, Daniel ( 1999 )For many years we have investigated the vibrational potential energy surfaces of non-rigid molecules in their ground and excited electronic energy $states.^{1}$ These have been determined from examining the far-infrared, ... -
VAPOUR PHASE TWO PHOTON PHOTOACOUSTIC SPECTROSCOPY OF $ACETONE^{*}$
Thakur, S. N.; Kundu, T.; Guo, D.; Goodman, Lionel ( 1992 )Two-photon photoacoustic spectra of acetone-$h_{6}$ and -$d_{6}$ have been recorded for the first time using a high flux injection seeded pulsed laser in the wavelength region 667 to 677nm. Systematic studies have been ... -
VARIABLE TEMPERATURE LINE BROADENING AND SHIFTING AND INTERMOLECULAR FORCES: INTER-PLAY BETWEEN THEORY AND EXPERIMENT
Beaky, M. M.; Flatin, D. C.; De Lucia, Frank C. ( 1997 )In recent years our laboratory has made measurements of pressure broadening and center frequency shift cross sections for a variety of molecule-atom and molecule-molecule systems, including CO, $H_{2} $S, and $CH_{3} F$ ... -
THE VARIABLE TEMPERATURE PRESSURE BROADENING AND LINE SHIFT OF CO AND HDO IN COLLISION WITH HELIUM
Beaky, M. M.; Goyette, T. M.; De Lucia, Frank C. ( 1996 )Pressure broadening and line shift cross sections for the 1$\leftarrow$0 and 2$\leftarrow$1 rotational transitions of carbon monoxide (CO) in collision with Helium (He) have been measured between 1 and 600 K. Measurements ... -
THE VARIABLE TEMPERATURE PRESSURE BROADENING AND PRESSURE SHIFT OF CO IN COLLISION WITH HELIUM
Beaky, M. M.; Goyette, T. M.; De Lucia, Frank C. ( 1995 )Pressure broadening and pressure shift parameters have been measured for CO in collision with helium over a wide range of temperatures. This temperature range includes the high temperature semiclassical regime in which the ... -
THE VARIABLE TEMPERATURE PRESSURE BROADENING OF $H_{2}S$ IN COLLISION WITH HYDROGEN
Flatin, D. C.; Ball, C. D.; De Lucia, Frank C. ( 1996 )Pressure broadening cross sections for the $2_{2,0}\leftarrow 2_{1,1}$ rotational transitions of hydrogen sulfide ($H_{2}S$) in collison with hydrogen ($H_{2}$) have been measured between 12 and 500 K. Measurements below ... -
VARIABLE TEMPERATURE PRESSURE BROADENING OF $H_{2}S$.
Ball, C. D.; Dutta, J. M.; Goyette, T. M.; Helminger, Paul; De Lucia, Frank C. ( 1996 )Linewidths of $H_{2}S$ presure broadened by He, $H_{2}$, $N_{2}$, and $O_{2}$ have been measured between 100 and 600 K. Two rotational transitions of the ground vibrational state were studied in an equilibrium cell. ... -
VARIABLE TEMPERATURE PRESSURE BROADENING OF $SO_{2}$
Ball, C. D.; Goyette, T. M.; Dutta, J. M.; De Lucia, Frank C. ( 1995 )Linewidths of $SO_{2}$ pressure broadened by He, $H_{2}, N_{2}$, and $O_{2}$ have been measured between 90 and 500 K. Several rotational transitions of the ground vibrational state were studied in an equilibrium cell over ... -
VARIABLE TEMPERATURE PRESSURE BROADENING OF $SO_{2}$
Dutta, J. M.; Jones, C. R.; Goyette, T. M.; De Lucia, Frank C. ( 1993 )The results of recent experiments of $SO_{2}$ pressure broadened by He, $H_{2}, O_{2}$, and $N_{2}$ will be presented. The $4_{2.2}-3_{1.3}, 13_{1.13}-12_{0.12}$, and $26_{4.22}-26_{3.23}$ transitions of the ground vibrational ...