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The photolysis of mercury diethyl vapour has been investigated in a static system over a pressure range of 0 to 80 mm. and a temperature range of 75 to 200° C. The products were analyzed for C2H6, C2H4, C4H10, C4H8. No significant amounts of H2, CH4, C4H8 or higher hydrocarbons were found. Rotating sector experiments have enabled a complete determination of the velocity constants of the reactions: (1) C2H6 + C2H5 = C2H4 + C2H6, (2) C2H5 + C2H5 = C4H10, (3) C2H5 + HgEt2 = C2H4 + C2H6 + Hg + C2H5. Energies of activation and frequency factors for these reactions have been deduced. E1–E2 = 0⋅8±0⋅2 kcal./mole, E2 ≯ 0⋅65 kcal./mole has been deduced from k2 at 150° C and the calculated collision frequency.
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Ivin et al. (1951) studied this question.
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