KINETICS AND MECHANISM OF THE THERMAL DISSOCIATION OF O,O'-BIS(1,3,5-TRI-tert-BUTYL-4-OXO-2,5-CYCLOHEXADIENYL)-p-BENZOQUINONE DIOXIME IN SOLUTION
The kinetics and mechanism of the thermal dissociation of O,O'-bis(1,3,5-tri-tert-butyl-4-oxo-2,5-cyclohexadienyl)-p-benzoquinone dioxime (quinol ether) in solutions in nonpolar solvents were investigated.The dissociation of the quinol ether is a reversible two-stage process and involves the formation of an intermediate radical.In relation to the reaction conditions (initial concentration, temperature) the dissociation rate of the quinol ether obeys the kinetic equations ω = keff.c1/2 or ω = k1c.The change in the reaction order is due to the ratio of the rates of dissociation of the intermediate radical and of its reaction with the phenoxyl radical.
Khizhnyi, V. A.,Danilova, T. A.,Goloverda, G. Z.,Dobronravova, Z. A.
p. 776 - 781
(2007/10/02)
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