TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): The preparation of (I), comprises reacting corresponding free ligands of (I) with metal alkoxide of formula (M(OR8)n), metal ketoketonate of formula (IV), metal halide of formula (M(Hal)n) or with dimeric metal complex of formula (V).Hal = F, Cl, Br or I.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The compound (I) comprises 8 compounds e.g. substituted cyclic complex compounds of formula (VI)-(X).V1 = bridging unit comprising 1-80 atoms of third, fourth, fifth and/or sixth main group (optionally substituted by at least one group R1) or 3-6 membered homo- or heterocyclic ring, which covalently links the partial ligand L with each other or covalent links L with L1.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The polymer comprises further structural units, comprising: units that exhibit hole injection and/or hole transport properties; units that exhibit electron injection and/or electron transport properties; units that exhibit electrophosphorescence; units that improve the transition from singlet to triplet state; units that influences the emission color of the resulting polymers; units that are used as backbone; and units that influence the film morphology and/or the rheological properties of the polymer. Preferred Definitions:    L1 = CO, NO, alkyl cyanides, aryl cyanides, alkyl isocyanides, aryl isocyanides, amine, phosphine, arsine, stibine, nitrogen-containing heterocycles, carbene, hydride, deuteride, F-, Cl-, Br-, I-, alkyl acetylides, aryl acetylides, cyanide, cyanate, isocyanate, thiocyanate, isothiocyanate, aliphatic or aromatic (thio)alkoxides, amide, carboxylate, aryl group, O2-, S2-, carbide, nitrene, N3-, diamine, imine, diimine, diphosphine, 1,3-diketonate, 3-ketonates derived from 3-keto esters, carboxylates derived from aminocarboxylic acids, salicyliminates, dialkoxide, dithiolate, nitrogen containing heterocycles or ligands that form cyclometalated five- or six-membered ring with the metal exhibiting at least one metal-carbon bond; and    PG = 2-40C alkenyl, 2-40C alkynyl, oxetane, oxirane, groups that undergo polycycloaddition, carboxylic acid derivatives, amine, alcohols, Si(R8)3, where at least two R8 represent Cl or 1-20C alkoxy.    Provided that: if at least one of the groups R1-R7 comprises polymerizable group comprising alkenyl or alkynyl group, then the groups R1-R7 are 3-40C alkenyl or 3-40C alkynyl carrying terminal double or triple bonds; and (I) comprises 1-3 polymerizable groups.    SPECIFIC COMPOUNDS - 68 Compounds (I) are disclosed e.g. iridium complexes of formula (Ia)-(Ie).    EXAMPLE - Mixture of sodium-bis-acetylacetonato-dichloro-iridate(III) and 6-tert-butyl-benzo(4,5)imidazo(1,2-c)quinazoline were provided under vacuum. Then the mixture was heated for 60 hours at 260 degrees C under stirring. After cooling the reaction mixture, sinter cake with glass beads (100 g) in dichloromethane (100 ml) were added and stirred for 3 hours. Then the reaction mixture was decanted to filter the glass beads and dried in vacuum. Then the obtained crude dimer was suspended in acetone (300 ml). Then the suspension was mixed with silver(I) trifluoroacetate (4.4 g) and heated for 2 hours under reflux. After cooling the suspension, the silver chloride precipitate was filtered and 6-(4-vinylphenyl)-2,4-hexanedione (4.8 g) in triethylamine (10 ml) was added to the filtrate and stirred for 20 hours at room temperature. Then the reaction mixture was worked up to obtain an iridium complex of formula (If).