Metal complex and device using the metal complex

摘要

Disclosed is an device having high light-emitting efficiency. A metal complex represented by the following formula (1).;;In the formula (1), n represents an integer of 1 to 3. LA and LB each independently represent the moiety of a group bonded to an iridium atom, except for coordinating atoms. When n is 3, a metal complex represented by the following formula (1-3):;wherein Me represents a methyl group) is excluded.

主权项

1. A metal complex represented by formula (1): wherein: in formula (1), n is 1 or 2; LA and LB each independently represent a moiety of a group bonded to an iridium atom except for coordinating atoms; a group represented by formula (1-1): means a group represented by formula (L1): wherein, in formula (L1), R1, R2, R3, R4, R5, R6 and R7 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group; Ar1 and Ar2 each independently represent an aryl group optionally having a substituent or a monovalent aromatic heterocyclic group optionally having a substituent; X1 represents a bivalent group in which two or more groups selected from among the group consisting of an arylene group, a bivalent aromatic heterocyclic group, and an ethynylene group are directly bonded to each other, an arylene group, a bivalent aromatic heterocyclic group, an ethynylene group, or a direct bond; a group represented by formula (1-2): is different from the group represented by the formula (1-1) and means a group represented by a formula (L2): wherein, in formula (L2), R8, R9, R10, R11, R12, R13, R14 and R15 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group; and when two groups represented by the formula (1-1) are present, the groups represented by the formula (1-1) may be the same as or different from each other; and when two groups represented by the formula (1-2) are present, the groups represented by the formula (1-2) may be the same as or different from each other.