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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VIBRATIONAL SPECTRA AND CONFORMATIONS OF (HALOMETHYL) CYCLOPROPANE DERIVATIVES
Kalasinsky, V. F.; Wurrey, C. J. ( 1979 )The infrared and Raman spectra of epifluorohydrin, epichlorohydrin, and (chloromethyl) cyclopropane have been recorded. In the case of epifluorohydrin, the presence of a number of spectral triplets has been interpreted on ... -
THE ELECTRONIC SPECTRUM OF FLUOROBENZENE
Lipp, E. D.; Seliskar, C. J. ( 1979 )The first $\pi^{*} \leftarrow \Pi$ electronic transition of fluorobenzene and two deutered isotopes has been photographed and vibrational analysis performed. The bulk of the intensity present in the spectra falls into three ... -
LABORATORY MEASUREMENTS OF HYDROGEN VIBRATION-ROTATION TRANSITIONS IN THE NEAR INFRARED AND VISIBLE
Mickelson, M. E.; Larson, L. E.; Trauger, J. T. ( 1979 )The near infrared quadrupole vibration-rotation spectrum of molecular hydrogen was first in the laboratory by $Herzberg^{1}$ and later in the atmosphere of Jupiter by Kiess $et al.^{2}$ Additional lines in the near infrared ... -
SOLVENT EFFECTS ON SEVERAL TRANSITIONS OF TETRAZINE
Vlasak, Sharon M.; Moomaw, William R. ( 1979 )We have previously discussed the electronic absorption and fluorescence, spectra of hydrogen bonded tetrazine which suggests the existence of both singly and doubly hydrogen bonded species in the ground and lowest excited ... -
THE HANLE EFFECT IN SINGLE ROVIBRONIC LEVEL FLUORESCENCE OF GLYOXAL
Loge, G. W.; Parmenter, C. S. ( 1979 )When run on a single longitudinal mode, the 454.5 nm line of an $Ar^{+}$ laser is resonant with only a few Doppler broadened rovibronic lines in the 0-0 band of the $^{\prime}Au-^{\prime}Ag (S_{1}-S_{0})$ absorption of ... -
LOW LYING ELECTRONIC STATES OF SILICON AND GERMANIUM SULPHIDE
Linton, C. ( 1979 )Emission spectra of silicon and germanium sulphides have been observed in a chemiluminescent flame produced from reactions of silicon and germanium atoms with OCS. For both SiS and GeS, the spectrum, studied at low resolution, ... -
EXCITATIONS FROM THE NONBONDING ORBITALS IN SYM-TETRAZINE
Wadt, W. R.; Kleier, D. A.; Martin, R. L. ( 1979 )Ab initio configuration interaction calculations using minimal and double-zeta basis sets have been performed on the $^{1,3}n\Pi^{*}$ and $^{2}n$ cation states of sym-tetrazine. The interaction of the four nitrogen nonbonding ... -
HIGH RESOLUTION FAR-INFRARED SPECTRA OF $H_{2}O$, HDO, AND $D_{2}O$ USING A VACUUM FOURIER-TRANSFORM SPECTROMETER
Covey, J. P.; Mead, D. G.; Vidrine, D. W. ( 1979 )Spectral line positions and absorptivities for $H_{2}O$, HDO, and $D_{2}O$ lines in the far infrared at $0.06 cm^{-1}$ resolution from 10 to $400cm^{-1}$ are presented, and the instrumentation used is described. The gases ... -
ANALYSIS OF $^{3}\Delta - ^{3}\Pi$ TRANSITIONS IN THE ORANGE SYSTEM OF CaO BY INTERMODULATION SPECTROSCOPY
Marks, R. F.; Cottscho, R. A.; Field, R. W. ( 1979 )In the orange bands of Cao numerous overlapped rotational progressions result in complicated spectra which are largely unassignable by traditional methods due to Doppler-limited resolution. Using the technique of intermodulation ... -
FAR INFRARED STUDY OF THE REFLECTION SPECTRA OF SEMICONDUCTOR SnS
Mead, D. G.; Chandrasekhar, H. R. ( 1979 )The polarized room temperature far infrared power reflection spectra of semiconductor SnS have been analyzed by model on the factorized form of the dielectric function to yield the long wavelength phonon frequencies and ... -
LUMINESCENCE SPECTRA OF SQUARE PLANAR CHAIN COMPLEXES
Smolarek, John; Vetuskey, J.; Krogh-Jaspersen, M.-B.; Marcotte, R.; Patterson, Howard H. ( 1979 )Certain $d^{8}$ square planar complexes of Ni, Pd, and Pt have been of interest in recent years because of metal-metal chain interactions which they exhibit in the solid state. We have measured the luminescence spectra and ... -
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 ... -
DIODE LASER TECHNIQUE; INTER-MODE CALIBRATION USING TANDEM ETALONS
Jennings, D. E. ( 1979 )Absolute calibration of diode laser spectral scans normally requires a spectral line of know frequency within the continuous tuning region of each laser mode. Since these discrete are only $\sim$ $cm^{-1}$ wide, it is often ... -
AN ANOMALOUS LOW-PRESSURE EFFECT ON ABSORPTION INTENSITIES
Schander, Judy; Russell, B. R. ( 1979 )Fluctuations in the oscillators strengths of vapor phase absorptions as a function of varying sample pressures have been studied for the $\pi^{*} \leftarrow n$ peaks of a series of ketones. These fluctuations are seen at ... -
ON ATOM/DIATOM COLLISIONAL REORIENTATION BY POLARISED FLUORESCENCE
Ibbs, K. G.; McCaffery, A. J.; Rowe, M. D. ( 1979 )A single mode circularly polarised dye laser is used to selectively excite individual vibronic states of several diatoms. The result is that the Mj state distribution of the excited molecules is asymmetric. The degree of ... -
VIBRATIONAL CIRCULAR DICHROISM OF TRANS-SUBSTITUTED CYCLOPROPANES
Heintz, V. J.; Keiderling, T. A. ( 1979 )Cyclopropanes with substituents in the trans-1,2 positions are optically active by virtue of their $C_{2}$ symmetry. The rigidity imposed by the three-membered ring limits the number of conformations and simplifies the ... -
VIBRATIONAL RELAXATION AND DEPHASING OF RAMAN ACTIVE MODES IN MOLECULAR SOLIDS AND CRYSTALLINE MOLECULAR $COMPLEXES^{*}$
Hess, Larry A.; Prasad, Paras N. ( 1979 )Temperature dependence of linewidths, lineshapes and frequencies can be used to derive the mechanism of dephasing and rates of vibrational relaxation [$T_{2}$-relaxation). Experimental results are presented for Raman active ... -
A REINVESTIGATION OF THE ABSORPTION SPECTRUM OF ETHYLENE
McDiarmid, R. ( 1979 )The vacuum ultraviolet absorption spectra of ethylene, ethylene-$d_{4}$ and all partially deuterated ethylenes have been measured and analyzed. The resultant assignments differ somewhat from prior assignments. The observed ... -
PROFILE OF THE ROTATION-VIBRATION FUNDAMENTAL OF HCl AND DCl IN SOLUTION
Mushayakarara, E.; Turrell, G. ( 1979 )The correlation-function approach to the analysis of absorption-band shapes has been used in studies of HCl and DCl in $CC\ell_{4}$ solution over a range of temperatures. The isotope effect on the band moments will be ... -
SPECTRAL ANALYSIS IV. WHOLE BAND ANALYSIS OF ROTATION-VIBRATION BANDS OF DIATOMIC CASES
Shaw, J. H.; Lin, C. L. ( 1979 )Absorption spectra recorded By Fourier Transform Spectrometers consist of the transmitted signals at discrete frequencies. Spectra of the 1 - 0 bands of $H^{35}$Cl and $H^{37}$Cl observed at a nominal resolution of $0.1 ...