Exxonmobil Chemical Patents Inc.

Sib Sankar Mal

Ulrich Kortz

This invention relates to polyoxometalates represented by the formula (A)[M(HO)XZWO]or solvates thereof, wherein A represents a cation acting as counterion of the polyanion, n is the number of the cations A, m is the charge of the polyoxoanion, M represents a transition metal selected from Cu, Zn, Pd, Pt and mixtures thereof, y is the number of transition metals M and is a number from greater than 4 to less than 6, p is a number of water molecules and is a number from 0 to 10, X is a halide selected from F, Cl, Br, I and mixtures thereof, z is a number of halides and is a number from 0 to 6 and Z represents a heteroatom selected from Sb, Bi, As, Seand Te.

Transition metal substituted polyoxometalates and process for their preparation

This invention relates to a Polyoxometalate (POM) represented by the formula: (A)[HMXWO(OH)]or solvates thereof, wherein: A represents a cation, n is the number of the cations A, m is the charge of the polyoxoanion, q is the number of protons and varies from 0 to 12, M represents a transition metal, and X represents a heteroatom selected from P, As and mixtures thereof. This invention also relates to a process to produce such POMs and to a process for the homogeneous or heterogeneous oxidation of organic substrates comprising contacting the organic substrate with such POMs.

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Bremen, Germany

Sib Sankar Mal