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  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 7159-7166 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The temperature dependence of the rate of transfer of electronic energy from NF(b 1Σ+) to ground state IF(X 1Σ+) to form IF[B 3Π(O+)] has been determined using a chemiluminescence flowtube apparatus. The energy transfer rate depends on the vibrational distribution of the IF(X 1Σ+), but is independent of the vibrational distribution of the NF(b 1Σ+). The vibrational temperature of the IF[B 3Π(O+)] product was also greater than or equal to the vibrational temperature of the IF(X 1Σ+) reagent. These results are explained in terms of an energy transfer model requiring that the individual state-to-state rates are proportional to the corresponding Franck–Condon factors.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 89 (1985), S. 3277-3279 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 90 (1986), S. 72-75 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 2795-2802 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The mechanism and rate constants associated with three-body recombination of Cs+ and electrons have been determined by monitoring the disappearance of electrons using a movable double Langmuir probe in a flowtube apparatus. The ambipolar diffusion rate constant for the dilute plasma in argon and helium was measured to be 380±30 cm2 s−1 and 650±200 cm2 s−1, respectively. Electron-ion recombination was measured in the presence of molecular nitrogen, oxygen, and carbon dioxide. From the kinetics of the electron disappearance along the flowtube, plasma recombination in nitrogen can be explained by the formation of a complex ion, recombination in oxygen proceeds through the formation of the O−2 followed by dissociative attachment in which the latter step is the rate determining step, and recombination in CO2 can be attributed to a direct three-body process.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 4051-4058 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Quenching of NF (a1Δ) and NF (b1Σ) was studied in a subscale upconversion gain medium that was based on energy transfer from NF (b1Σ) to IF. Quenching of NF (b1Σ) by IF was found to occur at gas-kinetic rates that were large compared to the energy-transfer rate, indicating low efficiency for the laser. Significant quenching of NF (a1Δ) by IF was also found to occur at a slower rate than was evident for the NF (b1Σ) state.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 84 (1986), S. 6687-6693 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Absolute rate constants of the collisional decay of I(5 2P1/2) by the halogen fluorides F2, ClF, and IF have been determined using the technique of time-resolved, laser-initiated infrared fluorescence, as well as atomic absorption spectroscopy (in the case of IF only). The room temperature rate constants, kF2〈8.7×10−14, kCIF=1.3±0.3×10−13, and kIF (∼400 K) =1.3±0.6×10−11 cm3 molecule−1 s−1, along with other reported quenching rate constants for the other halogen diatomics have been explained in terms of correlations based on the symmetry of the relevant potential energy surfaces.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 90 (1986), S. 1931-1934 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 12 (1980), S. 741-753 
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The production of both the b1Σ+ and a1Δ states of NCl has been observed from the reaction of HN3 with flowing streams of Cl and F atoms. The results suggest that a two-step reaction sequence is responsible for the production of excited NCl, as follows: The rate contant (all products) for the first step is k(F + HN3) 〉 1 × 10-11 cm3/molecule sec. Comparison of this value to results obtained in a previous study of the F + HN3 system yields a value k(F + N3) = 2 × 10-12 cm3/molecule sec. The rate constant for the reaction of chlorine atoms with HN3 was determined to be k(Cl + HN3) 1 × 10-12 cm3/molecule sec. The difference between the Cl + HN3 and F + HN3 rates is interpreted in terms of an addition-elimination mechanism.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 16 (1984), S. 977-993 
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Chemiluminescence from the a1Δ and b1Σ+ excited electronic states of nitrogen halide diatomics is observed when HN3 is allowed to react with mixtures of halogen atoms in a discharge-flow apparatus. Excited NF (a1Δ) is produced by the F + HN3 reaction, and NCl (a1Δ, b1Σ+) and NBr (a1Δ, b1Σ+) are produced by the F, Cl, + HN3 and F, Br + HN3 reactions, respectively. In the low-density limit, the yield of NF(a1Δ) was found to be near unity. The yields of the b1Σ+ states of NCl and NBr were determined to have a lower limit of ca. 10%. A number of results from these experiments, including direct observation of N3 radicals in the flow, support a hypothetical mechanism in which N3 acts as an intermediate. A second possible mechanism proceeding via an HNF intermediate cannot be ruled out.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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