Multinuclear metal complexes as Phosphorescence emitter in electroluminescent layered structure

摘要

Polynuclear metal complexes (I) are new. Polynuclear metal complexes of formula (I) are new. (LmMe-HL)n-XL (I) Me = transition metal; L = bidentate chelate-forming ligand; HL = bidentate chelate-forming ligand, which complexes the transition metal Me and is additionally bonded to a linker X-L; XL = n-functional linker and is covalently bonded to n auxiliary ligands H-L; n = 2-6; and m = 1-3. Independent claims are also included for: (1) a process for the preparation of polynuclear metal complexes; (2) electroluminescent layer arrangement containing layer(s) consisting of hole-injecting, hole-conducting, light-emitting, hole-blocking, electron-transporting or electron-injecting layers, the light emitting layer containing the polynuclear metal complexes as phosphorescence emitters; and (3) process for the production of electroluminescent layer arrangement by applying, from solution, the light-emitting layer containing polynuclear metal complexes.