Browsing Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999 by Title
Now showing results 1730-1749 of 3912
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THE IR SPECTRUM OF ACETYLENE: APPLICATION TO MOLECULAR ASTRONOMY
Hillman, J. J. ( 1990 )Acetylene is known to be a constitutent in planetary atmospheres and in the atmospheres of cool carbon stars based on spectra in the 12- to 14-micron region. From ground-based heterodyne observations of the carbon star ... -
IR STUDY OF METALLOTROPIC REARRANGEMENTS AND ION-PAIR INTERACTIONS IN CHROMIUM TRICARBONYL COMPLEXES WITH POLYCYCLIC AROMATIC LIGANDS
Lokshin, B. V.; Ezernitskaya, M. G.; Maltzeva, V. A.; Oprunenko, Yu. F.; Ustynyuk, Yu. A. ( 1998 )Metallotropic rearrangements (itramolecular rearrangements involving the displacement of the transition metal atom) in chromium tricarbonyl $\pi$-complexes with polycyclic aromatic ligands were studied by FTIR spectroscopy. ... -
IR-CRLAS OF SMALL BIOMOLECULES
Chapo, C. J.; Paul, J. B.; Roth, K.; Saykally, R. J. ( 1998 )Infrared cavity ringdown laser absorption spectroscopy (IR-CRLAS) is a novel technique which has been used to study a wide variety of $systems.^{a,b}$ Currently, we report the application of this method to study hydration ... -
IR-MICROWAVE DOUBLE RESONANCE STUDIES OF DIPOLE MOMENTS IN THE $\nu_{1}$ and $\nu_{3}$ STATES OF AMMONIA
Marshall, Mark D.; Izgi, Kamil Can; Muenter, J. S. ( 1997 )Infrared laser-microwave double resonance spectroscopy is used to observe the Stark effect of tunneling transitions within the $\nu_{1}$ and $\nu_{3}$ hydrogen stretching states of $NH_{3}$. Dipole moments for J,K states ... -
IR-SPECTROSCOPIC STUDY OF SURFACE CARBONYL COMPLEXES OF COPPER ATOMS AND IONS
Pestryakov, A. N.; Davydov, A. A. ( 1995 )Surface carbonyl complexes of $Cu^{o} - Co, Cu^{+} - Co$ and $Cu^{2+} - Co$ have been studied by the method of IR-spectroscopy. Within the ranges of the $\sigma-\pi$ binding model the frequency of C-o stretching vibrations ... -
Is $AlAr_{12}$ ICOSAHEDRAL?
Liu, Li; Estrin, Dario A.; Singer, Sherwin J. ( 1992 )In argon molecular beams seeded with aluminum atoms, the $AlAr_{12}$cluster is particularly abundant. We find that the energy of $AlAr_{12}$with a central aluminum atom is significantly lowered when the cluster distorts ... -
IS $C_{4}$ BENT?
Ewing, D. W. ( 1991 )Cheung and Graham have recently obtained high resolution ESR spectra of the $C_{4}$ molecule in rare gas matricies which show splitting of the perpendicular lines into separate x and y $components.^{1}$ Their interpretation ... -
ISOMERIC STRUCTURES, VAN DER WAALS VIBRATIONAL FREQUENCES AND ELECTRONIC RELAXATION OF THE ACETYLENE$(S_{1})^{\ast}{\AA}$ COMPLEX
Ju, S. S.; Cheng, P. Y.; Hahn, M. Y.; Dai, H. L. ( 1993 )Two isomeric structures of $C_{2}H_{2}\ast Ar$ VdW complex with acetylene electronically excited at the $S_{1}$ state have been determined from the rotational band shape analysis of the fluorescence excitation spectra. One ... -
ISOMERS AND MICROSOLVATION IN $SiOH^{+}$-$Ar_{n}$ COMPLEXES ($n=1-10$)
Dopfer, Otto; Olkhov, Rouslan V.; Nizkorodov, Sergey A. ( 1999 )Infrared photodissociation spectra of mass selection $SiSO^{-}$-$Ar_{n}$ ionic complexes have been recorded in the vicinity of the OH stretch vibration in a tandem mass spectrometer. Two isomers are identified in the ... -
ISOMERS OF $SO_{2}$: INFRARED ABSORPTION OF SOO IN SOLID AR
Lee, Yuan-Pern; Chen, Li-Shun ( 1996 )Sulfur dioxide ($SO_{2}$) isolated in solid argon at 12K was irradiated with light at 193 nm from an ArF excimer laser. Preliminary results show that new absorption lines observed at 1006.1 and $739.9 cm^{-1}$ are assigned ... -
ISOTOPE EFFECT IN THE ESR SPECTRA OF MATRIX-ISOLATED ATOMS
Zhitnikov, R. A. ( 1995 ) -
ISOTOPIC AND VIBRATIONAL SATELLITES IN THE ROTATIONAL SPECTRUM OF FCOCl, OBSERVED WITH A MOLECULAR BEAM MICROWAVE FOURIER TRANSFORM SPECTROMETER
Heineking, N.; Gerry, Michael C. L. ( 1992 )The microwave spectra of three singly substituted isotopic species of fluoro carbonyl chloride, FCOCl, and at least one excited vibrational state have been studied with a molecular beam microwave Fourier transform (MB-MWFT) ... -
ISOTOPIC SELECTIVITY IN THE ELECTRONIC PREDISSOCIATION DYNAMICS OF $CN-Ar_{n}$ CLUSTERS
Chen, Yaling; Lawrence, W. G.; Heaven, M. C. ( 1997 )$CN -Ar_{n}$ clusters with an average size of n=100, were prepared in a supersonic expansion. Electronic excitation of the clusters to $CN(B^{2}\Sigma^{+})-Ar_{r}$ was followed by electronic predissociation. In a previous ... -
ISOTOPIC SUBSTITUTION OF A HYDROGEN BOND: A NEAR-IR STUDY OF ALL 4 INTERMOLECULAR MODES IN DF DIMER
Davis, Scott; Anderson, David T.; Nesbitt, David J. ( 1996 )The near IR combination band spectra of supersonically cooled $(DF)_{2}$ in the $2900 cm^{-1}$ to $3300 cm^{-1}$ region have been recorded with a high resolution slit jet spectrometer. 12 vibration-rotation-tunneling ... -
AN "ITERATIVE SECULAR EQUATION" METHOD FOR CALCULATING ROVIBRATIONAL STATES OF WEAKLY-BOUND COMPLEXES
Slee, Tom; Le Roy, Robert J. ( 1991 )A new method for calculating rovibrational states of weakly-bound complexes from a given multi-dimensional potential surface is described and tested. This ``iterative secular equation"" (ISE) method generates eigenvalues ... -
IUPAC RECOMMENDATIONS FOR NOTATIONS AND CONVENTIONS IN VIBRATIONAL-ROTATIONAL SPECTROSCOPY
McDowell, R. S.; Bertie, John E.; Bunker, P. R.; Watson, J. K. G.; Flaud, J.- M.; Hougen, Jon T.; Rosmus, P.; Winnewisser, B. P. ( 1998 )IUPAC Commission 1.5 (the Commission on Molecular Structure and Spectroscopy of the Physical Chemistry Division) is preparing a series of recommendations on notations and convictions in molecular spectroscopy, the first ... -
IVR IN THE $S_{1}$ STATE OF CIS AND TRANS HYDROQUINONE AND p-DIMETHOXYBENZENE: EFFECT OF SYMMETRY VS ELECTRONIC STRUCTURE
Patwari, G. Naresh; Doraiswamy, S.; Wategaonkar, S.; Durgaprasad, M. ( 1999 )Hydroquinone and p-dimethoxybenzene exist in cis $(C_{2v})$ and trans $(C_{2h})$ isomers. The isomer (symmetry) and the energy dependence on the onset of intramolecular vibrational redistribution (IVR) was infered using ... -
{I}-UNCOUPLING AND ROTATIONAL STRUCTURE IN THE HIGH-RYDBERG STATES OF HCO
Hedderich, Hartmut G.; Mayer, Eric E.; Grant, Edward R. ( 1997 )Rotational structure associated with autoionizing states of HCO in the $n = 13$ complex is analyzed for core vibrational states (010) and (001). {I}-uncoupling is observed. -
J-AND K-CHANGING ROTATIONAL COLLISIONAL PROCESSES IN $CH_{3}Cl$
Pape, T. W.; De Lucia, Frank C.; Skatrud, David D. ( 1993 )We have used time-resolved infrared/mm-wave double resonance techniques to study rotational and vibrational collisional processes in methyl chloride. As was the case with $CH_{3}F_{1}$, the dipole-dipole process in $CH_{3}Cl$ ... -
J-DEPENDENT LIFETIMES OF NO($B^{2}\Pi$)v=$7^{*}$
Gadd, G. E.; Huestis, D. L.; Slanger, T. G. ( 1991 )Homogeneous interaction between the Rydberg $C^{2}\Pi$ and valence $B^{2}\Pi$ states of NO leads to both interesting spectroscopy and difficult interpretation of radiative properties, made more complicated by predissociation. ...