Phosphorescent Metal Complex Compound Radiation Emitting Component Comprising a Phosphorescent Metal Complex Compound and Method for Production of a Phosphorescent Metal Complex Compound

A phosphorescent polynuclear metal complex which comprises at least two metallic central atoms M, that are bonded to one another via at least one bridging bidentate ligand that coordinates by one bonding atom each to one central atom each and at least one ligand coordinated by one metallic central atom M, wherein one of the metallic central atoms M and the ligand form a six-membered metallacyclic ring,

• wherein the ligand which forms a six-membered metallacyclic ring with the metallic central atom has a tautomerizable unit in the uncoordinated state,
• wherein the metallic central atom M is selected from a group which comprises Ir, Pt, Au, Re, Rh, Ru, Os, Pd, Ag, Zn, Al and lanthanoids, and
• wherein the six-membered metallacyclic ring has the structural formula:
• where:
• n=1 to 3,
• Y═C—H, N, P, As, Sb, C—Ry, Si—Ry, Ge—Ry,
• X═N, O, P, As, Sb,
• R1, R2, Ry, R4 and R5 are each independently H, unbranched alkyl radicals, branched alkyl radicals, fused alkyl radicals, cyclic alkyl radicals, fully or partly substituted unbranched alkyl radicals, fully or partly substituted branched alkyl radicals, fully or partly substituted fused alkyl radicals, fully or partly substituted cyclic alkyl radicals, alkoxy groups, amines, amides, esters, carbonates, aromatics, fully or partly substituted aromatics, fused aromatics, fully or partly substituted fused aromatics, heterocycles, fully or partly substituted heterocycles, fused heterocycles, fully or partly substituted heterocycles, F and CN, and
• R1 and R5 include a free electron pair when X is O.