D. I. Galimov

Addition of the Peroxyl Radicals RO2 • to C70, C60 Molecules — the Dominant Reaction Inhibition by Fullerenes of the Hydrocarbons Oxidation

For the first time, the elementary reaction responsible for the inhibition by fullerenes of the liquid-phase oxidation of hydrocarbons was identified. A study of the product of addition to fullerene С60 of radical intermediates of the cumene oxidation shows that the inhibition caused by addition of RO2 • peroxyl radicals to C60 and C70 molecules. The measurement of the inhibition parameters allows concluding that C70 fullerene is a more effective inhibitor of cumene and ethylbenzene oxidation than C60. The alkyl derivatives of C60 were not formed at oxidation hydrocarbons in the presence of C60 due to their decay in the reaction with oxygen.

Reduction of LnIII to LnII in reactions of LnCl3·6H2O (Ln = Eu, Yb, and Sm) with Bui2AlH in THF. The formation of soluble luminescent complexes LnCl2·xTHF

Soluble luminescent complexes of divalent lanthanides, LnCl2·xTHF (Ln = Eu, Yb, and Sm), were obtained for the first time by reduction of LnIII to LnII in reactions of the lanthanide trichloride hexahydrates LnCl3·6H2O with Bui2AlH in THF. The photoluminescence spectra and other spectral characteristics of LnCl2·xTHF were examined.

Cycloadducts of fullerene C 60 with trolox and tocopherol diazo derivatives: synthesis and antioxidant activity*

The antioxidant activity of new cycloadducts, [2H-chromen-2″-yl]carbonylmethano-fullerenes, obtained from fullerene C60 and diazo ketones was quantitatively studied with initiated cumene oxidation as a model reaction.