NOVELTY - Metal complex compound (I), is new.    USE - (I) is useful in an organic electronic component, preferably organic integrated circuit, organic field effect transistor, organic thin film transistor, organic light emitting transistor, organic solar cell, organic optical detector, organic photoreceptor, organic field quench devices, light emitting electrochemical cell, organic laser diode, and organic electroluminescent device (organic light emitting diode) (claimed).    ADVANTAGE - (I) provides organic electroluminescent device with high durability, efficiency and stability against temperature.    DETAILED DESCRIPTION - Metal complex compound of formula (I), is new.    M = a metal coordinated to a ligand (L);    L = a ligand of formula (II);    V1 = a bridging unit containing 1-80 atom of III, IV, V and/or VI main group, which covalently connects the short ligands L1-L3 together;    a = 0 or 1;    L1 = Cy1-Z-Cy2;    L2, L3 = Cy1-Z-Cy2 (IIIa), Cy1-Cy2 (IVa) or D1-D2 (Va);    CY1, CY2 = optionally substituted cyclic group that respectively contains at least a donor atom or a C atom in the ring or an exocyclic donor atom, which is bonded over the cyclic group to the metal M, where the groups CY1 and CY2 in (III) are connected over the group Z together and can be connected in addition over a substituent, and the groups CY1 and CY2 in formula (IV) are connected over a single bond and additional over a substituent;    Z = optionally substituted atom of III, IV, V or VI main group, over which the cycle CY1 and CY2 are bridged; and    D1, D2 = a chemical group having at least a donor atom.    When a is 0, the bridging unit V1 is not applicable. INDEPENDENT CLAIMS are included for:    (1) the ligand (II);    (2) the preparation of (I);    (3) an oligomer, polymer or dendrimer comprising (I), where one or more bonds of (I) are bonded to the polymer, oligomer or dendrimer; and    (4) an organic electroluminescent device comprising (I) as emitting compound in an emitting layer, preferably in combination with a matrix material, or (I) as matrix material for an emitting compound in the emitting layer, where the matrix material is a phosphorescence compound, or (I) as light blocking material in a light blocking layer and/or (I) as electrotransport material in an electrotransport layer.