Abstract: The invention relates to polyoxometalates represented by the formula (An)m+ [Ru2L2(XW11O39)2WO2]m? or solvates thereof, wherein A is a cation, n is the number of the cations, m is the charge of the polyanion, L is a ligand bound to ruthenium and is independently selected from group consisting of water, unsubstituted or substituted arenes, unsubstituted or substituted heteroarenes, unsaturated hydrocarbons, ethers, unsubstituted or substituted allyl, unsubstituted or substituted alkanes, nitriles, carboxylates, peroxides, peracids, phosphines, phosphanes, CO, OH?, peroxo, carbonate, NO3?, NO2?, NO?, NH3, amines, F?, Cl?, Br?, I?, SCN?, NCS?, NCO? and mixtures thereof and X is a heteroatom selected from Si, Ge, B and mixtures thereof, a process for their preparation and their use for the catalytic oxidation of organic molecules.

Abstract: The invention relates to polyoxometalates represented by the formula (An)m+ [Ru2L2(XW11O39)2WO2]m? or solvates thereof, wherein A is a cation, n is the number of the cations, m is the charge of the polyanion, L is a ligand bound to ruthenium and is independently selected from group consisting of water, unsubstituted or substituted arenes, unsubstituted or substituted heteroarenes, unsaturated hydrocarbons, ethers, unsubstituted or substituted allyl, unsubstituted or substituted alkanes, nitriles, carboxylates, peroxides, peracids, phosphines, phosphanes, CO, OH?, peroxo, carbonate, NO3?, NO2?, NO?, NH3, amines, F?, Cl?, Br?, I?, SCN?, NCS?, NCO? and mixtures thereof and X is a heteroatom selected from Si, Ge, B and mixtures thereof, a process for their preparation and their use for the catalytic oxidation of organic molecules.