METALLIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME

摘要

Provided are a metal compound which is improved in lifetime, is reduced in concentration quenching and enhances the luminous efficiency and color purity of an organic electroluminescent device, and an organic electroluminescent device containing the metal compound. The metal compound is represented by the formula(1), wherein M is any one selected from Ir, Pt, Rh, Re and Os; m is 2 but m is 1 if M is Pt; A is a group represented by the formula(2); R1 to R12 are identical or different one another and are H, a C1-C20 alkyl group, an aryl group, a cycloalkyl group, a halogen group, a linear or branched substituent containing at least one halogen atom, a linear or branched substituent containing at least one hetero atom; and L1 is a group represented by the formula(3).