Collect. Czech. Chem. Commun. 1988, 53, 497-505

Photochemical decomposition of t-butyl hydroperoxide; Photocatalytical effects of VO(II) and Co(III) 2,4-pentanedionates

Stanislav Luňáka, Aleksandr I. Kokorinb, Eva Mácováa and Pavel Lederera

a Institute of Inorganic Chemistry Czechoslovak Academy of Sciences, 160 00 Prague 6, Czechoslovakia
b Institute of Chemical Physics, Academy of Sciences of the U.S.S.R., Moscow, U.S.S.R.


It has been found that [VO(acac)2] and [Co(acac)3] increase the rate of t-BuOOH photolysis, whereas [Fe(acac)3] has the opposite effect. Redox changes of the catalytically active [VO(acac)2] were followed using the EPR technique. An EPR signal from a free radical intermediate of photochemical decomposition of t-BuOOH was recorded, and the concentration of the intermediate was monitored during the reaction.