Composite materials composed of organic and inorganic substances of the general formulation MO(O.sub.2 C--C.sub.6 H.sub.4 --CO.sub.2), wherein M is a transition metal, and a method for producing... Show moreComposite materials composed of organic and inorganic substances of the general formulation MO(O.sub.2 C--C.sub.6 H.sub.4 --CO.sub.2), wherein M is a transition metal, and a method for producing the composite materials. The structure of these materials includes at least one column of an array of transition metal oxides, the column having corner-sharing octahedra interlinked with spacer organic chelating ligands. The inorganic-organic hybrid materials are likely to exhibit properties not encountered in pure inorganic and organic substances. Show less