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  • 1
    Electronic Resource
    Electronic Resource
    Reactivity of vibrationally excited methane molecules in reactions with chlorine atoms (1975)
    Springer
    Reaction kinetics and catalysis letters 3 (1975), S. 131-137 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract В работе показано, что при температурах 148–298°K константа скорости реакции атомов хлора с молекулами метана, у которых возбуждено дефрмационное колебание, не превышает более чем в 30 раз соответствуюшую константу для молекул метана, находящихся в термическом равновесии. Это означает, что при низких температурах в условиях термического равновесия реакция метана с атомарным хлором идет через основное колебательное состояние метана.
    Notes: Abstract At 148–298 K, the rate constant for the reaction of methane molecules excited into bending vibration with atomic chlorine does not exceed by more than 30 times the corresponding constant for methane in thermal equilibrium. Consequently, at low temperatures and thermal equilibrium the reaction of methane with atomic chlorine proceeds through the vibrational ground state of methane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02187504
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Hydrogen formation in silane oxidation (1985)
    Springer
    Reaction kinetics and catalysis letters 29 (1985), S. 9-14 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract С помощью масс-спектрометрической регистрации установлено, что основным газообразным продуктом окисления силана кислородом при низких давлениях является молекулярный водород. Изотопный анализ водорода, образующегося при окислении смесей SiH4+SiD4 показал, что не менее 20% водорода образуется молекулярным путем.
    Notes: Abstract From mass-spectrometric data, it has been established that the main gaseous product of silane oxidation by oxygen at low pressures is molecular hydrogen. Isotopic analysis of the hydrogen formed in the oxidation of SiH4+SiD4 mixtures indicates that not less than 20% hydrogen is generated by a molecular mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02067942
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Kinetic isotope effect in the chlorination of methane (1975)
    Springer
    Reaction kinetics and catalysis letters 3 (1975), S. 97-104 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Измерено отношение констант скоростей реакций атомарного хлора с метаном и дейтерометаном в интервале температур 163–613° K. При низких температурах (163–300° K) оно равно 2,2·exp(+1180 кал/RT). Предэкспонент 2,2 совпадает с рассчитанным по методу переходного состояния. При повышении температуры наблюдается отклонение от вышеприведенного зкспоненциального выражения, что также объясняется в рамках метода переходного состояния.
    Notes: Abstract The ratio of the rate constants has been measured for the reaction of atomic chlorine with CH4 and CD4 within the temperature range 163–613 K. At low temperatures (163–300 K) the ratio is 2.2 exp (1180/RT). The pre-exponential factor of 2.2 agrees with that calculated by transition state theory. A deviation from this exponential expression is observed as the temperature increases, which can also be explained by the transition state theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02216895
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of vibrational excitation on the reactivity of methyl fluoride with bromine atoms (1976)
    Springer
    Reaction kinetics and catalysis letters 5 (1976), S. 37-41 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследовано влияние неравновесного колебательного возбуждения молекул CH3F на скорость их химической реакции с атомами брома. Зарегистрировано увеличение скорости реакции в три раза при давлениях CH3F и Br2 0,07 тор и температуре 100°C. Показано, что оно не связано с равновесным тепловым разогревом.
    Notes: Abstract The influence of non-equilibrium vibrational excitation of CH3F molecules on the rate of their reaction with bromine atoms has been investigated. A three-fold increace in the reaction rate has been registered at CH3F and Br2 pressures of 0.07 Torr and at 100°C. The increase is shown not to be associated with equilibrium thermal heating.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02067430
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  • 5
    Electronic Resource
    Electronic Resource
    Reactivity of electronically excited Br(2P1/2) atoms towards CH3F (1977)
    Springer
    Reaction kinetics and catalysis letters 7 (1977), S. 321-326 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Определены константы скоростей атомов Br(2P1/2) и Br(2P3/2) в реакции Br+CH3F→HBr+CH2F при фотобромировании CH3F. Их отношение в температурном интервале 60–200 °C равно 10−(2,6±0,5) exp (10100±1000/RT).
    Notes: Abstract The rate constants for Br(2P1/2) and Br(2P3/2) atoms in the reaction Br+CH3F→HBr+CH2F in photobromination of CH3F have been determined. Their ratio is 10−(2.6±0.5) exp(10100±1000/RT) in the temperature range of 60–200 °C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02062463
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Studying of silane thermal decomposition mechanism (1998)
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 30 (1998), S. 99-110 
    Details
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The mechanism of silane thermal decomposition is investigated in a flow reactor. The time dependencies of silane consumption and disilane formation were compared with those parameters of solid product (aerosol particles) such as concentration, total hydrogen content in solid product, and fraction of hydrogen contained in solid product as polyhydride groups (SiH2)n. Silane loss and gaseous product formation were analyzed using a mass spectrometer. The hydrogen content in solid product was analyzed by the methods of IR-spectroscopy and hydrogen evolution. Based on a simple kinetic scheme we qualitatively explained the experimental dependencies of silane conversion and disilane formation, the effective activation energy of the decomposition process, and the amount of polyhydride groups in the solid product on reaction time and initial silane concentration. © 1998 John Wiley & Sons, Inc. Int J Chem Kinet 30: 99-110, 1998.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
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