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  • American Institute of Physics (AIP)  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Erratum: Measurements of XeF ground state dissociation and vibrational equilibration [J. Chem. Phys. 89, 4154 (1988)] (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 2529-2529 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.456700
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  • 2
    Electronic Resource
    Electronic Resource
    Measurements of XeF ground state dissociation and vibrational equilibration (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 89 (1988), S. 4154-4162 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The removal rates of the lower levels of the XeF(B→X) excimer laser transitions strongly affect the overall efficiency of the E-beam-pumped devices. We have deduced the removal rates of XeF(X,v) in argon, helium, and neon by measuring the populations of vibrational levels v=0, 1, 3, and 4 formed by the photolysis of XeF2. The time history of each vibrational population is monitored with a cw tunable dye laser tuned to an absorption feature of the selected vibrational/rotational level. The studies show a rapid vibrational relaxation followed by a common decay rate of the coupled vibrational levels. Helium and neon were found to remove these levels with the same rate coefficient of (2.0±0.2)×104 (s Torr)−1 at room temperature. The corresponding rate coefficients for argon were larger by about 25%. The removal rate coefficients increased with temperature in the range of T=23–95 °C. The rate coefficient for the vibrational excitation of v=0 by helium was measured to be (3.6±0.7)×105 (s Torr)−1 at room temperature. This is considerably larger than the value of (4.8±1.5)×104 (s Torr)−1 previously reported by Fulghum et al. Fast vibrational relaxation is required to empty the lower levels of the laser transitions so that vibrational "bottlenecking'' does not terminate the laser prematurely.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.454850
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  • 3
    Electronic Resource
    Electronic Resource
    The removal of DF (v=3 and 4) by H and D atoms (1985)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 83 (1985), S. 5567-5572 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The deactivation rate coefficients for the removal of DF (v=3) and DF (v=4) by H and D atoms have been measured at 295 K by the technique of laser-induced fluorescence in a discharge flow-tube apparatus. The rate coefficients were found to increase dramatically with vibrational level v. Data obtained for the removal of DF (v=4) in the presence of H atoms have been used to infer a rate coefficient of (4.5±2)×1011 cm3/mol s for the reaction H+DF (v=4)→HD+F. This is in good agreement with a value calculated from the equilibrium constant and a previous measurement of the F+HD rate coefficient obtained by Berry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.449679
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