[EN] ORGANOMETALLIC COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE AND LIGHTING DEVICE [FR] COMPLEXE ORGANOMÉTALLIQUE, ÉLÉMENT ÉMETTANT DE LA LUMIÈRE, DISPOSITIF ÉMETTANT DE LA LUMIÈRE, DISPOSITIF ÉLECTRONIQUE ET DISPOSITIF D'ÉCLAIRAGE
Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
Light-emitting elements comprising iridium organometallic complexes comprising 4-arylpyrimidines
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US09184398B2
公开(公告)日:2015-11-10
Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
A compound including a first ligand L
A
of Formula I,
is disclosed. In Formula I, ring B is a 5- or 6-membered ring; X
1
, X
2
, and X
3
are each CR
A
or N; R is a 5- or 6-membered carbocyclic or heterocyclic ring, which can be further fused or substituted; and (1) when ring B is an unfused 6-membered ring, X
1
and X
2
are N, and X
3
is C; and (2) when ring B is a fused 6-membered ring, ring B has the structure of Formula II,
In this structure, the wavy line indicates the point of connection to ring A; Q
1
to Q
6
are each C or N; and, when proviso (2) applies, (I) at least one of X
1
, X
2
, and X
3
is N; or (II) R is two or more fused or unfused 5- or 6-membered carbocyclic or heterocyclic rings, or (III) both.