Central chirality induced spiro chiral tetradentate cyclometalated platinum (ii) and palladium (ii) complex-based circularly polarized luminescence material and application thereof

A method for a central chirality induced spiro chiral tetradentate cyclometalated platinum (II) and palladium (II) complex-based circularly polarized luminescence material in an organic light emitting device, 3D display devices, three-dimensional imaging devices, optical information encryption devices, information storage devices and biological imaging devices;

• wherein the circularly polarized luminescence material has a chemical formula as shown in general formulas (I), (I′), (II), (II′), (III) and (III′). (I) and (I′), (II) and (II′), (III) and (III′) are enantiomers of each other:
• wherein M is Pt or PD;
• and V1, V2, V3 and V4 are independently N or C;
• L1, L2 and L3 are each independently a five or six membered carbocyclic, heterocyclic, aromatic or heteroaromatic ring;
• and La and Lb are each independently a five-membered central chiral carbocyclic or heterocyclic ring;
• A1, A2, X and X1 are each independently O, S, CRxRy, C═O, SiRxRy, GeRxRy, NRz, PRz, RzP═O, AsRz, RzAs═O, S═O, SO2, Se, Se═O, SeO2, BH, BRz, RzBi═O or BiRz;
• and
• R1, R2 and R3 each independently represent mono-, di-, tri-, tetra-substituted or unsubstituted, and meanwhile, R1, R2, R3, Ra, Rb, Rc, Rd, Re, Rf, Rg, Rh, Rx, Ry and Rz are each independently hydrogen, deuterium, halogen, alkyl, cycloalkyl, aryl, heteroalkyl, heterocycloalkyl, heteroaryl, haloalkyl, haloaryl, haloheteroaryl, alkoxy, aryloxy, alkenyl, cycloalkenyl, alkynyl, hydroxyl, mercapto, nitro, cyano, amino, mono- or dialkylamino, mono- or diarylamino, ester, nitrile, isonitrile, heteroaryl, alkoxycarbonyl, amido, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, sulfinyl, ureido, phosphonamido, imino, sulfo, carboxyl, hydrazino, substituted silyl, or combinations thereof;
• two or more adjacent R1, R2 and R3 can be selectively connected to form a fused ring;
• any two of Ra, Rb, Rand Rd are connected to form a cyclic system, and any two of Re, R, R and Rh can be connected to form a cyclic system.

A display apparatus, comprising an organic light emitting device, wherein the organic light emitting device comprises a first electrode, a second electrode and at least one organic layer provided between the first electrode and the second electrode, the organic layer comprising a central chirality induced spiro chiral tetradentate cyclometalated platinum (II) and palladium (II) complex-based circularly polarized luminescence material, wherein the circularly polarized luminescence material has a chemical formula as shown in general formulas (I), (I′), (II), (II′), (III) and (III′). (I) and (I′), (II) and (II′), (III) and (III′) are enantiomers of each other:

• wherein M is Pt or PD;
• and V1, V2, V3 and V4 are independently N or C;
• L1, L2 and L3 are each independently a five or six membered carbocyclic, heterocyclic, aromatic or heteroaromatic ring;
• and La and Lb are each independently a five-membered central chiral carbocyclic or heterocyclic ring;
• A1, A2, X and X1 are each independently O, S, CRxRy, C═O, SiRxRy, GeRxRy, NRz, PRz, RzPO, AsRz, RzAs═O, S═O, SO2, Se, Se═O, SeO2, BH, BRz, RzBi═O or BiRz;
• and
• R1, R2 and R3 each independently represent mono-, di-, tri-, tetra-substituted or unsubstituted, and meanwhile, R1, R2, R3, Ra, Rb, Rc, Rd, Re, Rf, Rg, Rh, Rx, Ry and Rz are each independently hydrogen, deuterium, halogen, alkyl, cycloalkyl, aryl, heteroalkyl, heterocycloalkyl, heteroaryl, haloalkyl, haloaryl, haloheteroaryl, alkoxy, aryloxy, alkenyl, cycloalkenyl, alkynyl, hydroxyl, mercapto, nitro, cyano, amino, mono- or dialkylamino, mono- or diarylamino, ester, nitrile, isonitrile, heteroaryl, alkoxycarbonyl, amido, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, sulfinyl, ureido, phosphonamido, imino, sulfo, carboxyl, hydrazino, substituted silyl, or combinations thereof;
• two or more adjacent R1, R2 and R3 can be selectively connected to form a fused ring;
• any two of Ra, Rb, Rc and Rd are connected to form a cyclic system, and any two of Re, Rf, Rg and Rh can be connected to form a cyclic system.