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  • 1
    Electronic Resource
    Electronic Resource
    Fluorescence yields from photodissociative excitation of formic acid, methyl formate, and acetic acid in the vacuum-ultraviolet region (1988)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 92 (1988), S. 3764-3768 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100324a015
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  • 2
    Electronic Resource
    Electronic Resource
    Reaction rate constants of NO+(a)+NO and Ar++NO measured by an optical detection method (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 94 (1991), S. 7893-7900 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The NO γ emission is observed from the reaction of NO+(a)+NO. The emission provides a new detection method for studying the NO+(a) reaction kinetics at thermal energy without electric field. The NO+(a) is produced by photoionization of NO at 76.5 nm as well as by the reaction of Ar++NO, where Ar+ is also produced by photoionization of Ar. The vibrational population distributions of NO(A) resulted from the ion–molecule reactions are measured and used to discuss the mechanisms for the production of the emission. The reaction rate constants are determined from the decay rates of the emission intensity as a function of time. The reaction rate constants of NO+(a)+NO and Ar++NO at room temperature are measured to be (5.8±0.7)×10−10 and (2.1±1.0)×10−10 cm3/s, respectively. The reaction rate constant of NO+(a)+Ar at thermal energy is estimated to be about 10−12 cm3/s.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.460124
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  • 3
    Electronic Resource
    Electronic Resource
    Fluorescence from photoexcitation of CF3X (X=H, Cl, and Br) at 50–106 nm (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 92 (1990), S. 133-139 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The photoabsorption and fluorescence cross sections of CF3H, CF3Cl, and CF3Br are measured in the 50–106 nm region using synchrotron radiation. Fluorescence spectra from photoexcitation of these molecules are dispersed to identify the emitting species to be mainly the excited CF@B|2, CF*3, and CF3X+*, but not CF+@B|3. The fluorescence excitation function of CF3X (X=F, H, Cl, or Br) is generally divided into three excitation bands; each band produces a specific excited species. The fluorescence yields of the studied molecules are determined and correlated with dissociation thresholds and ionization potentials. The excited ion states that may emit are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.458482
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  • 4
    Electronic Resource
    Electronic Resource
    Emission spectra of SiF3 (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 2834-2835 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Emission spectra of SiF3 radical were observed from photodissociative excitation of SiF4 at 99.1, 95.5, and 92.3 nm. The spectra show a broad visible band in the 350–800 nm region, a UV band in 290–340 nm, and a weak band in 240–280 nm. The visible band resembles the chemiluminescence spectra observed from etching of silicon by F or XeF2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455935
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  • 5
    Electronic Resource
    Electronic Resource
    Quantitative absorption and fluorescence spectroscopy of Cd(CH3)2 in vacuum ultraviolet (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 89 (1988), S. 160-165 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Photoabsorption and fluorescence cross sections of Cd(CH3)2 were measured in the 115–270 nm region using synchrotron radiation as a light source. Vibrational structures superimposing on absorption continua were observed in the 140–230 nm region. Fluorescence appears at excitation wavelengths shorter than 184 nm. Fluorescence produced at 123.6, 147, and 157.5 nm was dispersed to identify the emission to be mainly from excited Cd (326.1 nm). Emissions from excitation of Cd(CH3)2 at 157, 193, and 248 nm via a multiphoton excitation process were investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455499
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  • 6
    Electronic Resource
    Electronic Resource
    Fluorescence from photoexcitation of BCl3 at 45–106 nm (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 2036-2040 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The photoabsorption, fluorescence cross sections, and the fluorescence yield of BCl3 are measured in the 45–106 nm region. Fluorescence spectra are dispersed to identify the emitting species. The emission observed at excitation wavelengths longer than 96 nm is attributed to the excited BCl@B|2. The BCl (A–X) emission appears at excitation wavelengths shorter than 97.5 nm. Emissions observed at the thresholds of 88 and 81 nm are attributed to the excited BCl+*3 (C¯ 2A‘2 and D¯ 2E') states, respectively. Emissions from excited B* atoms appear in the 48–64 nm region. In the 88–96 nm region the maxima and minima of the fluorescence cross section are complimentary with those of the BC1+3 ionization yield, indicating where superexcited state(s) exist that decay through competitive channels of fluorescence and autoionization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.457063
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  • 7
    Electronic Resource
    Electronic Resource
    Fluorescence from photoexcitation of C2H2 at 50–106 nm (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 4000-4007 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The photoabsorption and fluorescence cross sections of C2H2 were measured in the 50–106 nm region using synchrotron radiation as a light source. Fluorescence observed at several excitation wavelengths was dispersed to identify the fluorescing species that are excited C2H*, C@B|2 , CH*, H*, and possibly C2H+*2 . The photodissociation process of C2 H2 leading to the formation of fluorescing species is discussed. The C2 (C–A) emission observed at 92.3 and 95.5 nm is produced by the molecular elimination process associated with superexcited state(s). Fluorescence spectra from the two-photon excitation of C2 H2 at 157.5 and 193 nm were also observed and compared with those of single-photon excitation at the equivalent excitation energies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455810
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  • 8
    Electronic Resource
    Electronic Resource
    Dissociative electron attachment to some chlorine-containing molecules (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 3145-3152 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The electron-attachment rate constants of CH3Cl, C2H5Cl, and C2H3Cl in N2 and Ar were measured as a function of reduced electric field (E/N). These data and the previous data of SOCl2 and CCl2F2 were converted to the electron-attachment cross sections as a function of electron energy. The present results are compared with existing fragmentary data. The dissociative electron-attachment processes of the studied molecules are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455916
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  • 9
    Electronic Resource
    Electronic Resource
    Rate constant of the gas phase reaction of SO3 with H2O (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 89 (1988), S. 4853-4860 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The rate constants for the reaction of SO3 with H2O in He and in N2 were measured at total pressures from 1–10 Torr in a flow tube at room temperature. The concentration of SO3 was monitored by photofragment emission produced by 147 nm excitation. Dependencies of apparent reaction rates on wall conditions and reaction tube sizes were investigated. At total He pressures of 1–10 Torr, a value of (5.7±0.9)×10−15 cm3 /s was obtained for the upper limit of the homogeneous gas phase reaction rate constant. This rate value is more than two orders of magnitude lower than the previously published value, but it is consistent with the theoretical calculation provided in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455680
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  • 10
    Electronic Resource
    Electronic Resource
    CH(A, B–X ) fluorescence from vacuum ultraviolet excitation of CH3 (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 89 (1988), S. 2797-2802 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: CH3 was produced by the reaction of Cl or F with CH4 in a flow tube. The CH(A 2Δ, B 2Σ−–X 2Πr) fluorescence was observed from photoexcitation of CH3 at 157 nm by a single-photon excitation process and at 193 nm by two-photon excitation. No emission was detected at 248 nm. The fluorescence cross section at 157.5 nm was estimated to be about 8×10−19 cm2 with an uncertainty of factor 3. The CH2 emission is negligibly weak. The photodissociation process for the absorption continua of CH3 is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455033
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