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Thermal dimerization of 1,3-cyclohexadiene in the gas phase

par De Mare, George ;Huybrechts, Guy ;Toth, M.;Goldfinger, Paul
Référence Transactions of the Faraday Society, 67, page (1397-1403)
Publication Publié, 1971

Article révisé par les pairs

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Résumé :

The thermal dimerizations of 1,3-cyclohexadiene(Chd), 2 Chd→exo-dicyclohexadiene (D3) kD3 (a) and 2 Chd→endo- dicyclohexadiene (D4) kD4 (b) have been studied between 471.1 and 638.5 K at pressures ranging from 25 to 630 Torr. These reactions are second order and the rates are unaffected by the surface-to-volume ratio or by the presence of added propene. The rate constants are given by log 10kD3(l. mol-1 s-1)=-(25 100±500)/4.576 T+(5.97±0.25), and log10k D4(l. mol-1 s-1)=-(24 300±500)/4.576 T+(6.08±0.25).