| 摘要 |
A compound having a formula M(LA)x(LB)y(LC)z, where ligand LA is;;ligand LB is;;and ligand LC is;;is disclosed. In formula M(LA)x(LB)y(LC)z, M is a metal having an atomic number greater than 40; x is 1 or 2; y is 0, 1, or 2; z is 0, 1, or 2; x+y+z is the oxidation state of the metal M; A1-A8 are carbon or nitrogen; ring B is bonded to ring A through a C—C bond; M is bonded to ring A through a M-C bond; X is O, S, Se, CRR′, or NR1; rings C and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; R3 represents mono, or di-substitution, or no substitution; R2, RC, and RD each independently represent mono, di, tri, or tetra-substitution, or no substitution; R4 represents mono, di, tri, or tetra-substitution; at least one R4 is a five-membered or six-membered heterocyclic ring which can be further substituted by RE; where RE represents mono, di, tri, or tetra-substitution, or no substitution; each R substituent is independently selected from a variety of moieties; and any adjacent R substitutents are optionally joined to form a ring. |
| 主权项 |
1. A compound having a formula M(LA)x(LB)y(LC)z:
wherein the ligand LA is wherein the ligand LB is wherein the ligand LC is wherein M is a metal having an atomic number greater than 40; wherein x is 1, or 2; wherein y is 0, 1, or 2; wherein z is 0, 1, or 2; wherein x+y+z is the oxidation state of the metal M; wherein A1, A2, A3, A4, A5, A6, A7, and A8 are carbon or nitrogen; wherein ring B is bonded to ring A through a C—C bond; wherein M is bonded to ring A through a M-C bond; wherein X is selected from the group consisting of O, S, Se, CRR′, and NR1; wherein rings C and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; wherein R3 represents mono, or di-substitution, or no substitution; wherein R2, RC, and RD each independently represent mono, di, tri, or tetra-substitution, or no substitution; wherein R4 represents mono, di, tri, or tetra-substitution; wherein at least one R4 is a five-membered or six-membered heterocyclic ring which can be further substituted by RE; wherein RE represents mono, di, tri, or tetra-substitution, or no substitution; wherein each of R, R′, R1, R2, R3, R4, RC, RD, RX, RY, RZ and RE are independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; and wherein any adjacent substitutents of R, R′, R1, R2, R3, R4, RC, RD, RX, RY, RZ and RE are optionally joined to form a ring. |
