Abstract: (Dimethylvinylgermoxy)heptasubstituted silsesquioxanes of the formula 1, in which the substituents R are equal to one another and represent: a linear or branched C2 to C8 alkyl group; a cyclopentyl or cyclohexyl group; a phenyl group; and the method of their synthesis.

Abstract: A new cage monovinylgermasilsesquioxanes of the general formula 1, in which R1 are the same and represent a C1 to C6 alkyl group or a cyclopentyl or cyclohexyl group or a phenyl group. The invention also relates to the method of synthesis of cage monovinylgermasilsesquioxanes of the general formula 1.

Abstract: The invention relates to new functionalized unsaturated derivatives of (dimethylvinylgermoxy)heptasubstituted silsesquioxanes of the general formula 1, and the method in which: R are the same and represent linear and branched C2 to C8 alkyl groups, or cyclopentyl and cyclohexyl groups, or phenyl groups R? represents an unsubstituted aryl group containing between 1 and 2 rings or an aryl group substituted in any position in the ring. The invention also relates to the method of synthesis of functionalized unsaturated derivatives of (dimethylvinylgermoxy)heptasubstituted silsesquioxanes.