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  • 1
    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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  • 2
    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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  • 3
    Electronic Resource
    Electronic Resource
    Quantitative absorption and fluorescence spectroscopy of BCl3 in vacuum ultraviolet (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 89 (1988), S. 6653-6657 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The absorption and fluorescence cross sections and the fluorescence quantum yields of BCl3 were measured in the 106–190 nm region. A visible emission band appears at excitation wavelengths shorter than 173 nm and two ultraviolet emission bands appear at wavelengths shorter than 126.5 nm. Fluorescence spectra were dispersed to identify emitting species that are attributed to BCl@B|2. The upper limits of the potential energies for the observed emitting states are 2.56, 5.19, and 5.70 eV, as determined from the fluorescence thresholds. The photodissociation process of BCl3 is discussed in accord with the fluorescence observed. The radiative lifetimes of the visible band vary over the 5–24 μs range, and the quenching rate constants of the excited state by BCl3 vary in (1.2–2.7)×10−10 cm3/s, both depending on fluorescence wavelength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455387
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  • 4
    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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  • 5
    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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  • 6
    Electronic Resource
    Electronic Resource
    Transient signals induced by laser irradiation of negative ions in hollow electrode discharges of Cl2 and HCl in N2 (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 2649-2656 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A technique for sampling negative ions in hollow-cathode and hollow-anode discharges of strongly electronegative gases is presented. The negative ions were mass analyzed to be Cl−, Cl−2, and Cl−3 for the discharge of Cl2/N2 mixture and Cl− for HCl/N2. The dependence of negative ion intensity on gas pressure and discharge voltage was investigated. Photodetachment of negative ions was used to induce photoelectron transient signals that probe ion concentrations. The transient signal indicates that negative ions originate in discharge, but not in the mass-analyzer region. Time dependence of the negative ion signal induced by laser irradiation was measured by a quadrupole mass analyzer and used to study the kinetics of charged particles responsible for the transport of laser-induced perturbation. The observed negative ion transient signal is a useful means for studying negative ion kinetics in plasma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346490
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  • 7
    Electronic Resource
    Electronic Resource
    Low-energy electron attachment to BCl3 (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 675-678 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The rate constants of low-energy electron attachment to BCl3 diluted in N2 are measured as a function of E/N at 1–11 Td, corresponding to mean electron energies at 0.4–1.0 eV. The negative ions produced by hollow-cathode discharges of either pure BCl3 or mixtures of BCl3 in N2 are mass analyzed to identify the products of electron attachment to BCl3. Only Cl− ion is found in the discharge media, although BCl−3 is observed at the applied voltage significantly lower than the breakdown voltage. The electron attachment processes of BCl3 are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.345771
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  • 8
    Electronic Resource
    Electronic Resource
    Solid-state structure of bis(2,3,4-trimethylpentadienyl)iron
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 321 (1987), S. 389-395 
    Details
    ISSN: 0022-328X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-328X(87)80311-X
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  • 9
    Electronic Resource
    Electronic Resource
    Application of strong vertical magnetic fields to growth of II-VI pseudo-binary alloys: HgMnTe
    Amsterdam : Elsevier
    Journal of Crystal Growth 121 (1992), S. 394-398 
    Details
    ISSN: 0022-0248
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-0248(92)90149-D
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  • 10
    Electronic Resource
    Electronic Resource
    Dislocation structure in α-Al2O3 deformed at high temperature (1991)
    Springer
    Journal of materials science 10 (1991), S. 483-484 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00838359
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