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 k/cm![[fraction three-over-two]](https://www.rsc.org/images/entities/char_e0ee.gif)
mol–½ s–1= 1016.65 ± 0.70 exp[–(251 ± 8)/RT](activation energy in kJ mol–1).
I. M. T. Davidson, C. Eaborn and J. M. Simmie, J. Chem. Soc., Faraday Trans. 1, 1974, 70, 249 DOI: 10.1039/F19747000249
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