Browsing Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999 by Title
Now showing results 1790-1809 of 3912
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LARGE-AMPLITUDE BENDING DYNAMICS OF ACETYLENE
Jacobson, Matthew P.; O'Brien, Jonathan P.; Silbey, R. J.; Field, R. W. ( 1998 )We have investigated and the large-amplitude bending dynamics of acetylene, in its ground electronic state, using an effective Hamiltonian model that reproduces all relevant experimental data (84 vibrational levels), up ... -
LASER ABSORPTION AND EMISSION SPECTROSCOPY OF THE YELLOW GREEN BAND SYSTEM OF $TiCl^{+}$
Kaledin, L. A.; Heaven, M. C. ( 1997 )The Yellow-Green band system of $TiCl^{+}$ has been studied using a dual-beam laser absorption technique in a hollow cathode $discharge^{m}$, and conventional emission spectroscopy. The quartz discharge cell for emission ... -
Laser Absorption Spectroscopy of $LaF^{+}$: Accurate Term Energies for the $H^{2}\Pi$, $D^{2}\Phi$, and $X^{2}\Delta$ States
Kalden, L. A.; Kaledin, A. L.; Heaven, M. C. ( 1996 )The laser absorption spectrum of the $LaF^{+}$ molecular ion has been observed for the first time. Gas phase LaF was obtained by heating a mixture of a 0.2 g of La metal and 0.3 g of $LaF_{3}$ powder to 1900 K. $LaF^{+}$ ... -
LASER ABSORPTION SPECTROSCOPY OF $TiCl^{+}$ : ANALYSIS OF THE [17.9]$^{3}\Delta-X^{3}\Phi(0, 0)$ Band
Kaledin, L. A.; Parrish, J. P.; Heaven, M. C. ( 1996 )The laser absorption spectrum of the $TiCl^{+}$ molecular ion was observed for the first time in a hollow cathode discharge. The discharge was driven at 25 KHz at powers in the range of 80- 100 W. Peak currents of 0.5 A ... -
LASER ABSORPTION SPECTROSCOPY OF HYDROCARBON FLAMES
Cheskis, Sergey; Derzy, Igor; Lozovsky, Vladimir A. ( 1999 )Intracavity Laser Absorption Spectroscopy (ICLAS) and Cavity Ring-Down Spectroscopy (CRDS) were used to detect absorption spectra of $CH(C^{2}\Sigma^{-}\leftarrow X^{2}\Pi)$ at 314 nm, $^{1}CH_{2} (\bar{b}^{1}B_{1}\leftarrow ... -
LASER ABSORPTION SPECTROSCOPY OF LaF: ANALYSIS OF THE $B^{1}\Sigma^{+}$ TRANSITION
Kaledin, L. A.; Kaledin, A. L.; Heaven, M. C. ( 1996 )Laser absorption spectrum of the LaF $B^{1}\Pi-X^{1}\Sigma^{+}$ (2,0), (1,0), (2,1), and (3,2) bands was recorded. Gas phase LaF was obtained by heating a mixture of a 0.2 g of La metal and 0.3 g of $laF_{3}$ powder to ... -
LASER AND FOURIER TRANSFORM EMISSION SPECTROSCOPY OF THE $G^{4}\Phi -X^{4}\Phi$ SYSTEM OF TITANIUM MONOFLUORIDE.
Ram, R. S.; Peers, J. R. D.; Teng, Ying; Adam, A. G.; Muntianu, Alexandrina; Bernath, P. F.; Davis, S. P. ( 1997 )The emission spectrum of the $G^{4}\Phi - X^{4}\Phi$ transition of TiF has been observed in the $13500 - 16000\;cm^{-1}$ region using a Fourier transform spectrometer (FTS), as well as by laser excitation spectroscopy. In ... -
LASER DIODE SPECTROSCOPY OF ACETYLENE IN THE $12700 CM^{-1}$ REGION
Li, D.; Baker, J. G.; Bowring, N. J. ( 1993 )Spectra with linewidths of $0.04 cm^{-1}$ are presented for the $\nu_{1}+3\nu_{3}(a)$ and $\nu_{1}+2\nu_{2}+\nu_{3}+4\nu_{4}^{0}(b)$ bands of acetylene in the $12680 -12725 cm^{-1}$ range. These were obtained with inexpensive ... -
LASER EXCITATION OF THE $A^{2}\Pi - X^{2}\Sigma^{+}$ SYSTEM OF SROH
Presunka, Paul I.; Coxon, John A. ( 1993 )Recently we have undertaken a rotational analysis of the $(100)-(000)$ and $(010)-(000)$ bands of the $A^{2}\Pi - X^{2}\Sigma^{+}$ system of SrOH. Preliminary results suggest a strong K-type resonance between the ... -
LASER EXCITATION SPECTRA AND FRANK-CONDON FACTORS FOR $Bi_{2} X^{1} \Sigma^{+}_{g} \rightarrow A 0^{+}_{u}$
Franklin, R. G.; Perram, G. P. ( 1999 )Laser excitation spectra of the lowest vibrational levels, $v^{\prime \prime}=2-5$ and $v^{\prime}=0-4$, for the $Bi_{2}X^{1} \Sigma^{+}_{g} \rightarrow A 0^{+}_{u}$ system have been recorded for a wide range of rotational ... -
LASER EXCITATION SPECTROSCOPY OF THE $\tilde{B}^{2}A_{1}-\tilde{X}^{2}A_{1}$ TRANSITION OF $CaOCH_{3}$
Whitham, C. J.; Brown, J. M.; Beaton, S. A.; Ito, Y. ( 1998 )The $\tilde{B}=\tilde{X}$ transition of $CaOCH_{3}$ has been observed at Doppler limited resolution and rotationally analysed. The molecule was generated using a laser ablation/molecular beam source in which a solid calcium ... -
LASER EXCITATION SPECTROSCOPY OF THE MONOMETHYLCYCLOPENTADIENYL COMPLEXES OF CALCIUM, ZINC AND CADMIUM
Robles, Eric S. J.; Ellis, Andrew M.; Miller, Terry A. ( 1991 )Using a laser vaporization/photolysis technique, we have prepared metal monomethylcyclopentadienides $CaCH_{3}C_{5}H_{4}$, $ZnCH_{3}C_{3}H_{4}$, and $CdCH_{3}C_{5}H_{4}$, in a supersonic jet expansion and have recorded ... -
LASER EXCITATION SPECTROSCOPY OF THE MONOPYRROLIDE DERIVATIVES OF ZINC AND CADMIUM
Robles, Eric S. J.; Ellis, Andrew M.; Miller, Terry A. ( 1991 )Laser excitation spectra of the monopyrrolides $ZnC_{4}H_{4}N$ and $CdC_{4}H_{4}N$, cooled in a free jet expanison, will be presented. This study represents the first gas-phase specrtroscopic observation of these organometallic ... -
LASER EXCITATION SPECTROSCOPY OF ZINC AND CADMIUM CYCLOPENTADIENIDES
Robles, Eric S. J.; Ellis, Andrew M.; Miller, Terry A. ( 1991 )Electronic spectra of zinc cyclopentadienide $(ZnC_{5}H_{5})$ and cadmium cyclopentadienide $(CdC_{5}H_{5})$ will be presented. Preparation of these radicals, neither of which has been observed previously in the gas phase, ... -
LASER EXCITED FLUORESCENCE FROM ORGANIC DYES RELEASED FROM $LIPOSOMES^{*}$
Misra, P.; Vandermeulen, D. L.; Spears, K. G. ( 1994 )Liposomes are vesicles constituted of phospholipid bilayers dispersed in aqueous media. Owing to their structural similarities to membranes of biological cells, lipid vesicles serve as a model system to study the effects ... -
LASER EXCITED METASTABLE SPECTROSCOPY OF $C_{2}H_{2}$
Cunningham, Kevin L.; Drucker, Stephen; Field, R. W.; Humphrey, Susan J.; Morgan, Christopher G.; Wodtka, A. M. ( 1997 )Triplet states have been detected near the 3$\nu_{3}$ vibrational level of the $S_{1}$ electronic surface of $C_{2}H_{2}$ using the highly selective technique of Laser Excited metastable (LEM) spectroscopy. LEM detects ... -
LASER FLUORESCENCE EXCITATION SPECTROSCOPY OF THE Ar-HCO COMPLEX
Wright, Scott A.; Dagdigian, Paul J. ( 1997 )The fluorescence excitation spectrum of the Ar-HCO van der Waals complex in the vicinity of the $\tilde{B}^{2} A^{\prime} (000)-\tilde{X}^{2} A^{\prime}(000)$ band of free HCO is reported. At least 8 bands associated with ... -
LASER FREQUENCY SPECTROSCOPY: A REVIEW
Evenson, K. M. ( 1996 )The extension of frequency measurements from the microwave to the ultra-violet has paved the way for the current revolution in ultra-high-resolution, high-accuracy spectroscopy. The extension of frequency measurements to ... -
LASER HEATING OF PHOTOELECTRONS DURING MULTIPHOTON IONIZATION OF MOLECULAR IONS ADSORBED ON DISPERSE SILICA SURFACES
Glinka, Yu. D.; Jaroniec, M. ( 1997 )The laser heating process of photoelectrons during the multiphoton ionization of the $CrO_{4}^{2-}$ ions adsorbed on a disperse silica ($SiO_{2}$) surface was studied for the first time on the basis of luminescence kinetics ... -
LASER INDUCED EMISSION FROM NFC1 RADICALS ISOLATED IN LOW TEMPERATURE ARGON MATRICES
Gilbert, Julanna V.; Okin, Greg S. ( 1995 )The spectrum and lifetime of laser induced emission from NFCl radicals isolated in low temperature argon matrices is reported. The spectrum is compared to emission observed following the photolysis of gas phase $NFCl_{2}$, ...