Radiolysis of cyclohexene/CO system

The radiolysis of cyclohexene in the presence of CO (1-10 x 105 Pa pressure) leads to the formation of: 2-cyclohexene-1-one; 2-cyclohexene -1-o1; bi-2-cyclohexane-1-yl; 3-cyclohexyl-cyclohexene; cyclohexanone; cyclohexanol; cyclohexane and bicyclohexyl; in addition to traces of formaldehyde; 2- and 3-cyclohexene-1-carboxaldehyde; cyclohexane-carboxaldehyde and dicyclohexylketone. The Gi-value of each individual product was found to be a function of the CO concentration in the solution, e.g. Gi(2-cyclohexane-1-one) = 1.05 at 1 x 105 Pa CO and 10.30 at 1 x 106 Pa CO, respectively (1 atm = 1.013 x 105 Pa). Experiments with deoxygenated cyclohexane were also carried out, and the final products were analysed for comparative purposes. Probable reaction mechanisms are presented as an explanation of the results obtained. (author)