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  • Articles  (3)
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  • rate coefficients  (3)
  • Springer  (3)
  • 1980-1984  (3)
  • Technology  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Drift tube investigations on the reactions of O 2 + with CH4 and of CO 2 + with NO in various buffer gases (1981)
    Springer
    Plasma chemistry and plasma processing 1 (1981), S. 65-71 
    Details
    ISSN: 1572-8986
    Keywords: Drift tube ; rate coefficients ; internal excitation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract The influence of internal excitation on the reactions of O 2 + + CH4 and of CO 2 + + NO has been investigated using a slow flow drift tube. The rate coefficients for these reactions obtained as a function of relative kinetic energy in various buffer gases like He, Ne, Ar, and Kr showed higher values under conditions where the internal excitation of the reactant ions was enhanced. For both reactions the lowest reactivity at all kinetic energies was observed to occur in He, indicating that He is the least effective buffer for collisionally inducing internal excitation of molecular ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00566376
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of the decomposition of CS2, OCS, and SCl2 in a radiofrequency pulse discharge (1982)
    Springer
    Plasma chemistry and plasma processing 2 (1982), S. 331-339 
    Details
    ISSN: 1572-8986
    Keywords: Pulsed r.f. discharge ; kinetic spectroscopy ; identification of transient species ; rate coefficients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract The identification of transient species in r.f. discharges and measurement of rate coefficients for their reactions contributes to the understanding of the complex mechanisms in r.f. plasma chemistry. Using kinetic spectroscopy in conjunction with a short-duration r.f. pulse to investigate the decomposition of CS2, OCS, and SCl2 at low pressure, it has been shown that the predominant primary dissociation steps are CS2→CS+S, OCS→CO+S(1D), and SCl2→S+Cl+Cl. With OCS the most important subsequent steps involved the formation and removal of S2: S(1D)+OCS→CO+S2(a1Δ), S2(a1Δ)+M→S2(X3Σ)+M, (13), and 2S2+M→S4+M(15). Taking the previously published value of k12, computer simulation gave the rate coefficient values k13=6.4±2.4×108 mol−1 dm3 s−1 and k15=1.8±0.5×1013 mol−2 dm6 s−1 at 295±3 K.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00567560
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  • 3
    Electronic Resource
    Electronic Resource
    The quenching of vibrationally excited N 2 + ions by various neutrals (1982)
    Springer
    Plasma chemistry and plasma processing 2 (1982), S. 353-359 
    Details
    ISSN: 1572-8986
    Keywords: Selected ion flow tube ; rate coefficients ; quenching ; ionic vibrational excitation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract Using a selected ion flow tube, the quenching of the vibrational excitation of N 2 + (X, v≠0) by Ne, N2, O2, NO, and CO2 was investigated, and the following thermal quenching rate coefficients, kq, were obtained respectively (all in units of 10−10 cm3 sec−1): 0.045, 5, 1.2, ≤0.3, ≤1. For the charge transfer of N 2 + with O2, NO, and CO2, the respective rate coefficients (in units of 10−10 cm3 sec−1) 0.5, 3, and 7 were obtained independently of whether N 2 + (X) was vibrationally excited or not.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00567562
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