Browsing by Author "Davidson, Iain M. T."

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    Kinetics of the Thermal Isomerisation of Hexamethyldisilane
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (1-6), 1974) Davidson, Iain M. T.
    A kinetic investigation of the gas-phase isomerisation of hexamethyldisilane between 717 and 780 K with initial pressures of 10-125 mmHg is described, and discussed in relation to other work on the thermolysis of hexamethyldisilane. The isomerisation is a radical chain reaction of three halves order, with rate constants given by Xr/cmJ moH s-' = iol6-6s±o-7O exp[— (251 ± 8)/2?T] (activation energy in kJ mol-1).
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    Mechanism of thermolysis of tetramethylsilane and trimethylsilane
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1978, 74 (09-12), 1978) Baldwin, Alan C.; Davidson, Iain M. T.; Reed, Michael D.
    The thermolysis of tetramethylsilane has been studied in a pulsed stirred-flow system between 840 and 1055 K, yielding significantly different Arrhenius parameters above and below 950 K. The high temperature results relate to a non-chain mechanism, whence D(Me3Si–Me)= 355 ± 6 kJ mol–1 while the low temperature results relate to a short chain sequence. A mechanism for the latter is shown by computer-aided numerical integration to be consistent with experimental results, as is a similar chain mechanism for the thermolysis of trimethylsilane.