Browsing Abstracts of OSU International Symposium on Molecular Spectroscopy 1970-1979 by Issue Date
Now showing results 1-20 of 3443
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ELECTRONIC STRUCTURE AND PHOTODISSOCIATION OF $HgCl_{2}$
Wadt, W. R. ( 1979 )Ab initio configuration interaction calculations using relativistic effective core potentials and flexible basis sets have been used to study and assign the electronic spectrum of $HgCl_{2}$. The lowest dipole-allowed ... -
MEASUREMENTS OF ATMOSPHERIC EXTINCTION NEAR 4$\mu$m
Rinsland, C. P.; Wing, R. F. ( 1979 )Observations made at Kitt Peak National Observatory using the 1.3-m telescope and a grating spectrometer have been used to derive atmospheric extinction in the spectral region 3.98 to 4.07 $\mu$m. The extinction, determined ... -
INTERCOMPONENT RESONANCES, ENERGY TRANSFER AND RELAXATION IN CRYSTALLINE COMPLEXES BETWEEN A BROMONAPHTHALENE AND $OCTAFLUORONAPHTHALENE^{*}$
Law, Kam S.; Prasad, Paras N. ( 1979 )This paper presents studies of dynamics of triplet states in crystalline binary complexes: 1,4-dibromonaphthalene:octafluoronaphthalene; 1-bromonaphthalene:octafluoronaphathalene and 2,3-dibromonaphthalene;octafluoronaphthalene. ... -
QUADRATURE PROCEDURE FOR CALCULATING HIGHER-ORDER RKR POTENTIAL CURVES
Le Roy, Robert J. ( 1979 )As a generalization of the familiar quadrature form of the RKR method, an interactive inversion procedure for determining diatomic molecule potential energy curves has been developed which is based on the higher-order JWKB ... -
UPPER STATE FLUORESCENCE SPECTROSCOPY OF CENTROSYMMETRIC AROMATIC HYDROCARBONS
Lin, Horn-Bond; Topp, Michael R. ( 1979 )Consecutive two--photon laser excitation has been extended to reveal new features of the ultraviolet fluorescence spectra of centrosymmetric aromatic hydrocarbons. The major differences of fluorescence spectra between ... -
THE $^{1}B_{2} (\Pi\Pi^{*}) \leftarrow ^{1}A_{1}$ ELECTRONIC BAND SYSTEM OF TOLUENE
Leugers, M. A.; Seliskar, C. J. ( 1979 )The $^{1}B_{2}(\Pi \Pi ^{*})\leftarrow ^{1}A_{1}$ electronic band system of the normal isotope of toluene has been photographed and measured at high resolution. Analysis of the strong vibronic components has led to ... -
ABSOLUTE INTENSITIES OF THE $\nu_{2}$ BANDS OF $^{14}ND_{3}$ AND $^{15}ND_{3}$
Jones, L. H.; Krohn, B. J. ( 1979 )Line profiles in the $\nu_{2}$ bands of $^{14}ND_{3}$ and $^{15}ND_{3}$ ($600-900 cm^{-1})^{1}$ have been measured on a Fourier transform spectrometer. Absolute intensities were determined for numerous individual rotational ... -
LASER INDUCED FLUORESCENCE OF CYCLOHEXADIENYL RADICALS
Nakayama, T.; Sheng, S. J. ( 1979 )The assignment of the lowest electronic transitions of cyclohexadienyl and phenylcyclohexadienyl radicals will be presented. These radicals are prepared by the bombardment of benzene crystals with high energy electron ... -
THE NITROGEN LASER INDUCED FLUORESCENCE OF ACETALDEHYDE VAPOR ITS QUENCHING BY A MAGNETIC FIELD
Wickun, W. G.; Silvers, S. J. ( 1979 )Nitrogen laser radiation at 3371 {\AA} excites the A state of acetaldehyde, generating fluorescence which appears as a complex system of discrete bands superimposed on a broad continuum. the spectrum extends from the laser ... -
A PROJECTED HAMILTONIAN APPROACH TO ATOMS-IN-MOLECULES
Smith, J. A.; Ohrn, Yngve ( 1979 )A method of treating polyatomic systems is presented which fully exploits their atom-in-molecule nature. Within an independent-particle model a partitioning technique is applied to the projection of a full polyatomic ... -
HIGH ORDER CORIOLIS INTERACTIONS IN THE INFRA-RED BANDS OF $NO_{2}$
Hoy, A. R.; Brand, J. C. D. ( 1979 )Small systematic resonance shifts ($< 1$ $cm^{-1}$) have been observed and correctly identified in several recent high resolution I.R studies of $NO_{2}\cdot^{1,2,3}$ These shifts arise from a C-axis coriolis interaction ... -
MICROWAVE OPTICAL DOUBLE RESONANCE OF NHD
Brown, J. M.; Steimle, T. C.; Curl, R. F., Jr. ( 1979 )With the aid of the recently completed optical analysis of $NHD^{1}$, it has been possible to measure a number of microwave transitions by Microwave-Optical-Double-Resonance (MODR) techniques. Unlike $NH_{2}$ there are ... -
MAGNETIC CIRCULAR DICHR0ISM OF MATRIX ISOLATED GROUP IVb DIATOMIC METAL OXIDES
Powell, David H.; Brittain, Robert D.; Vala, Martin ( 1979 )An apparatus for the measurement of magnetic circular dichroism (MCD) and UV-visible absorption spectra of matrix-isolated high temperature species has been constructed. The spectra of Group IVb diatomic oxides have been ... -
HIGH RESOLUTION INFRARED SPECTRUM OF $CD_{3}F$: THE $\nu_{1}(A_{1})$ AND $2\nu_{5}(A_{1})$ PARALLEL $BANDS^{*}$
Dakhil, M. A.; Daunt, S. J.; Blass, W. E.; Halsey, G. W. ( 1979 )The $\nu_{1}(A_{1})$ and $2\nu_{5}(A_{1})$ bands have been recorded on the University of Tennessee five meter Littrow spectrometer with resolutions from 0.010 - $0.030 cm^{-1}$. Approximately 200 lines in $\nu_{1}$ have ... -
ON THE PHASE TRANSITION IN SYM-TRIOXANE
Bernstein, E. R.; Lal, B. B. ( 1979 )Polarized Raman spectra of sym-trioxane single crystals have been recorded in the Intra-and Intermolecular region. Three phonons were observed at room temperature at 59.6, 64.3, and $84.8 cm^{-1}$, belonging to E symmetry. ... -
THE CONFORMATION OF ETHYL BENZENE AND THE CONFORMATION AND LOW INTERNAL ROTATION BARRIER IN ISOPROPYL BENZENE.
True, Nancy S.; Farag, Maya; Bohn, Robert K.; Macgregor, M. A.; Radhakrishnan, J. ( 1979 )A single conformation exists in ethyl benzenes with the ethyl C-C bond lying in a plane orthogonal to the benzene ring. This conclusion results from the observation that asymmetrically substituted ethyl benzenes each display ... -
LASER INDUCED FLUORESCENCE OF HCN FROM THE $\tilde{A} {^{1}}A''$ STATE
Baronavski, A. P.; McDonald, J. R. ( 1979 )Fluorescence spectra of the near vaccum ultraviolet $\tilde{A} ^{1} A^{\prime\prime} \rightarrow \tilde{X} ^{1}\Sigma^{+}$ transition of HCN have been recorded and assigned. A tuned (0.15A bandwidth) ArF excimer lasser ... -
ALKYL-SUBSTITUTED BENZENES OBSERVED IN A SUPERSONIC EXPANSION
Hopkins, J. B.; Powers, David E.; Beck, S. M.; Monts, David L.; Smalley, R. E. ( 1979 )Although the spectroscopy of $benzene^{1}$ has been extensively studied, little spectroscopic information exists for the alkyl-substituted benzenes. Excitation spectra have been recorded with a continuously-operating ... -
RATE CONSTANT OF VIBRATIONAL TRANSFER FROM THE $nu_{3}$ MODE TO THE $\nu_{1}$ AND $\nu_{2}$ MODES OF $N_{2}O$
Alamichel, C.; Picard-Bersellini, A. ( 1979 )In previous publications (1,2) one of us has given experimental results about vibroluminescence of $N_{2}O$ excited by activated nitrogen. In the present work we apply to the preceding results the Lawrence Livermore kinetic ... -
THE THEORY OF VIBRATIONAL CIRCULAR DICHROISM. I. TECHNIQUES FOR THE CALCULATION OF ROTATIONAL STRENGTHS OF VIBRATIONAL TRANSITIONS
Marcott, Curtis; Ferber, Steven D.; Moscowitz, Albert; Overend, John ( 1979 )The calculation of rotational strengths of vibrational transitions requires the evaluation of matrix elements of the electric and magnetic dipole-moment operators and, for this purpose, it is necessary first to solve the ...