Browsing Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999 by Title
Now showing results 2604-2623 of 3912
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P-TYPE DOUBLING IN THE INFRARED SPECTRUM OF NO-HF
Fawzy, Wafaa M.; Fraser, G. T.; Hougen, Jon T.; Pine, A. S. ( 1990 )The HF stretching band of the NO-HF open-shell complex has been recorded using a molecular-beam optothermal spectrometer. The spectrum exhibits P-type doubling indicative of an unpaired electron spin coupled to the rotational ... -
PACKING OF Ar AROUND CO AS DEDUCED FROM IR LINESHAPE ANALYSIS
Winn, John S.; Anderson, David T. ( 1995 )A theory of the influence of solvent packing around small solute molecules in cryogenic matrices has been successfully applied to interpret IR spectra of CO trapped in Ar. Spectra of neat CO co-deposited with Ar as well ... -
PARALLEL ALGORITHM FOR VIBRATIONAL EIGENSTATE CALCULATIONS USING THE DISCRETE VARIABLE REPRESENTATION.
Darakjian, Z.; Pendergast, P.; Hayes, Edward F. ( 1993 )The discrete variable representation (DVR) has emerged as a viable tool in the calculation of the vibrational spectra of triatomic molecules [1]. Light et al. have developed the method of sequential diagonalization/truncation ... -
PARALLEL RI-MP2 ENERGIES AND GRADIENTS: IMPLEMENTATION AND APPLICATIONS
Bernholdt, David E. ( 1999 )The so-called ``resolution of the identity'' integral approximation applied to second-order many-body perturbation theory (RI-MP2) is a method well-suited to the treatment of large chemical systems at a much lower computational ... -
PARTIAL PHOTODISSOCIATION CROSS SECTIONS FOR $O_{2}$ IN THE 1205 {\AA} REGION
Gibson, S. T.; Lewis, B. R. ( 1997 )Measurements of the photoabsorption cross section of $O_{2}$ and the partial photodissociation cross section yielding $O(^{1}D)$ have been made over the wavelength region of the Tanaka second band, $(1,0)E^{3} \Sigma_{u} ... -
PATTERN RECOGNITION BY EXTENDED AUTO- AND CROSS CORRELATION
Coy, Stephen L.; Jacobson, Matthew P.; Field, R. W. ( 1996 )The traditional approach to understanding the information encoded in spectroscopic data has been first to assign each transition observed and then to relate the positions and intensities of the transitions to a model that ... -
PATTERN RECOGNITION IN HIGHLY RESOLVED UV-SPECTRA OF HYDROGEN BONDED CLUSTERS
Helm, R. M.; Neusser, H. J. ( 1998 )Highly resolved sub-Doppler spectra of clusters with rotational resolution have been measured with mass selection in a resonance-enhanced two-photon excitation process. The first photon originates from a nearly Fourier-transform ... -
Patterns of Orientational Order in Polar Clusters
Lavender, Holly B.; Lyer, Karthik A.; Singer, Sherwin J. ( 1994 )Patterns of orientational order in polar clusters arise from the tendency of dipolar particles to form chains in which the dipoles are in a head-to-tail configuration. These chains encircle the cluster leading to a pronounced ... -
PDN-FTMW spectroscopy of short lived molecules and their complexes
Endo, Yasuki ( 1993 )Fourier-transform microwave (FTMW) spectroscopy combined with a Fabry-Perot cavity and a pulsed supersonic jet method has been shown to have fairly high sensitivity in the cm-wave region, and is now extensively used for ... -
PDN-FTMW SPECTROSCOPY OF THE Kr-OH COMPLEX
Sato, K.; Ohshima, Yasuhiro; Endo, Yasuki ( 1995 )Previously, we have reported FTMW spectroscopy of $Ar-OH,^{1,2}$ where we were able to resolve the hyperfine splittings due to the hydrogen nucleus and the parity doublings arising from the degenerate electronic state. In ... -
PECULIARITIES OF ELECTRONIC SPECTRA OF DYE MOLECULES ADSORBED ON MICROPOROUS SILICON DIOXIDE
Beger, V. N.; Sechkarev, A. V. ( 1993 )Specific nonlinearity concentration and nonmonotonous temperature dependances were experimentally determined for parameters of fluorescence and absorption spectra adsorbed dyes molecules. Those dependances considerably ... -
PENDICULAR STATE SPECTROSCOPY OF AN ASYMMETRIC TOP: PARALLEL AND PERPENDICULAR BANDS OF ACETYLENE-HF
Moore, David T.; Oudejans, L.; Miller, R. E. ( 1998 )High resolution infrared spectroscopy was used to investigate the orientation of the acetylene-HF van der Waals complex in static electric fields. Parallel and perpendicular band spectra were recorded at field strengths ... -
PENDULAR STATES AND IVR
Fraser, G. T.; Ortigoso, J.; Pate, Brooks H. ( 1996 )There has been long-term interest in developing methods to align or orient molecules to study steric effects in collision. Recently, friedrich and Herschbach and Loesch and Remsheid have explored the use of large static ... -
PENDULAR STATES OF HCN DIMER AND TRIMER: THE USE OF MOLECULAR COMPLEXES IN ACHIEVING ALIGNMENT
Block, P. A.; Bemish, R. J.; Miller, R. E. ( 1992 )Optothermal infrared spectroscopy has been used to observe highly pendular $states^{1}$of the HCN dimmer and trimer, resulting from the application of a large, uniform electric field. The spectra show a dramatic evolution ... -
PENETRATION DEPTHS OF PHOTOMOBILIZED F ATOMS FROM A SANDWICH EXPERIMENT
Bressler, C. G.; Dickgiesser, M.; Schwentner, N. ( 1996 )Electronic excitation of an insulator leads in general to a significant rearrangement of the lattice which can induce even a displacement of atoms like in the color center formation. For even stronger changes in the ... -
PERFORMANCE CHARACTERISTICS OF A LOW TEMPERATURE CELL WHICH IS COOLED BY A CLOSED CYCLE HELIUM REFRIGERATOR
Mantz, A. W.; Ball, C. D.; De Lucia, Frank C.; Risal, D.; Ruch, A. ( 1995 )We have fabricated and tested a low temperature cell which is mounted directly on the second stage of a CTI-Cryogenics Model 22C $CRYODYNE^(R)$ CRYOCOOLER. The vacuum system consists of a room temperature vacuum shroud, a ... -
PERFORMANCE OF A TUNABLE DIODE LASER SYSTEM WHICH UTILIZES ALL REFLECTIVE OPTICS
Balent, J.; Mantz, A. W. ( 1991 )This preliminary work describes the performance characteristics of a Tunable diode laser (TDL) system which incorporates diamond turned off axis parabolic mirrors throughout the system. The TDL is wavelength stabilized by ... -
PERIODIC BEHAVIOUR OF DATA FOR MAIN-GROUP TRIATOMIC MOLECULES
Hefferlin, R.; Marsa, R. L.; Cavanaugh, R. J.; Linderman, K. A. ( 1990 )We suggest that all neutral ground-state triatomic molecules (including permutation isomers) be arranged in a cubic lattice on $Z_{1}, Z_{2}$, and $Z_{3}$. We then create a new lattice by (1) pulling out, perpendicular to ... -
PERIODIC SYSTEMS OF MOLECULES FROM GROUP THEORY
Hefferlin, R.; Zhuvikin, G. V.; Cavanaugh, R. J. ( 1993 )We assume that atoms are indistinguishable particles which can be transformed one into another by the elements of a group $G.^{1}$ which corresponds to the internal symmetry of their periodic system. We construct a molecular ... -
THE PERMANENT ELECTRIC DIPOLE MOMENT OF PTO, PTS, PTN AND PTC
Steimle, T. C.; Jung, K. Y.; Li, B.- Z. ( 1995 )A molecular beam optical Stark study of the ground and low-lying excited states of platinum monoxide, PtO, monosulfide, PtS and monocarbide, PtC was performed. A "cold" beam of platinum compounds was generated by skimming ...