Abstract: Provided are compounds comprising a ligand LA of Formula I where the ligand LA is coordinated to Ir.

Abstract: A compound of Formula I, is provided. In Formula I, one of Z1, Z2, and Z3 is N and the remainder are C; each of L1 and L2 is independently selected from a direct bond and a linking group; at least one of R1, R2, RA, RB, RC, RD, and RE comprises a group R* having a structure selected form the group consisting of Formula II, -Q(R3)(R4)a(R5)b, Formula III, and Formula IV, Each R, R?, R?, R1, R2, R3, R4, R5, RA, RB, RC, RD, RE, RF, RG, and RH is independently hydrogen or a General Substituent, with the proviso that group R* is not adamantyl. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are organic light emitting devices (OLED) comprising an anode; a cathode, and an organic layer between the anode and the cathode, the organic layer comprising a light-emitting dopant within a host material, the light-emitting dopant being an optically active Pt complex comprising a tetradentate ligand; wherein one enantiomer of the optically active Pt complex is present in an enantiomeric excess (ee) of at least 5%. Further provided are OLEDs comprising an anode, a cathode, and an organic layer between the anode and the cathode, the organic layer the organic layer comprising a light-emitting chiral dopant within a chiral host material, the light-emitting chiral dopant being an optically active complex; wherein one enantiomer of the optically active complex of the chiral dopant is present in an ee of at least 5%, and wherein one enantiomer of the chiral host material is present in an ee of at least 5%.

Abstract: A compound having a structure of the formula Ir(LA)(LB), in which LA is a bidentate, tridentate, tetradentate, pentadentate, or hexadentate ligand and LB is a monodentate, bidentate, tridentate, or tetradentate ligand, or not present, and where the total denticity of LA plus LB is 6, and LA includes at least one structure of Formula I: is disclosed as a useful phosphorescent emitter compound.

Abstract: Provided are compounds comprising a ligand LA of Formula I

Abstract: Provided are compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications. Also provided are formulations comprising these compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications. Further provided are OLEDs and related consumer products that utilize these compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications.

Abstract: Provided are organometallic compounds comprising a first ligand LA of Formula I wherein RA, RB, RC, RD, K3, ring A and ring B are each defined herein.

Abstract: In one aspect, provided is a compound of Formula I, In Formula I, M is Pt or Pd; L has the structure F1 is or a direct bond; rings A, B, C, D, and F are independently monocyclic rings or multicyclic fused ring systems; each of X1 to X10 is independently C or N; each of Z1 to Z4 is C or N; each of L1 to L5 is a direct bond or an organic linker, each of a, b, c, and d is 0 or 1; each K1 to K4 is a direct bond, O, or S; each of Z1 to Z4 that is connected to O or S is C; and each RA, RB, RC, RD, RE, and RX is independently hydrogen or a substituent.

Abstract: Provided are organometallic compounds comprising an at least two-dentate ligand comprising at least one 5-membered or 6-membered carbocyclic or heterocyclic ring. Further provided are organometallic compounds containing a platinum atom as the central metal atom. Also described are their various uses including as emitters in devices such as organic light emitting diodes and related electronic devices. Also provided are formulations comprising these organometallic compounds containing a platinum atom as the central metal atom. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

Abstract: Provided are organometallic compounds comprising a first ligand LA which comprises at least two rings which are bridged by a two-atom linker comprising two structures which are independently selected from the group consisting of CR, CRR’, SiRR’, GeRR’, BR, BRR’, N, NR, O, and S. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

Abstract: A compound having a structure of the formula Ir(LA)(LB), in which LA is a bidentate, tridentate, tetradentate, pentadentate, or hexadentate ligand and LB is a monodentate, bidentate, tridentate, or tetradentate ligand, or not present, and where the total denticity of LA plus LB is 6, and LA includes at least one structure of Formula I: is disclosed as a useful phosphorescent emitter compound.

Abstract: Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: The present disclosure provides a compound including a first ligand LA of Formula I, In Formula I, ring A is a 7 to 12-membered heterocyclic ring that is fused to ring B, which is a 5-membered or 6-membered heterocyclic ring; ring C is a 5- or 6-membered ring; n is 1 or 2; X is selected from B, N, Al, In, and Ga; each W is selected from NR, O, S, Se, SO, SO2, BR, CRR?, C?CRR?, SiRR?, PRR?, and GeRR?; each of Z1, Z2, and Z3 is independently C or N; at least one of Z1, Z2, and Z3 is N; each R, R?, RA, RB, and RC is hydrogen or general substituent; each of K1 and K2 is a direct bond, O, or S; LA is coordinated to a metal M. Formulations, OLEDs, and consumer products containing the compound are also disclosed.

Abstract: Provided are compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications. Also provided are formulations comprising these compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications. Further provided are OLEDs and related consumer products that utilize these compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications.

Abstract: Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Provided is a process for preparation of a compound of Formula 1 where, ring Y and ring Z are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring; Z1 and Z2 are each independently C or N; each RY and RZ independently represents mono to the maximum possible number of substitutions, or no substitution; x=1, 2, or 3; y=0, 1, or 2; and x+y=3.

Abstract: A compound including a bidentate ligand LA comprising a structure of Formula I, is disclosed. In Formula I, ring A? is a 7-, 8-, or 9-membered ring structure; X is of NR2, O, CR, CRR?, S, or SiRR?; each of RA?, R1, and R2 is independently hydrogen or a substituent; R1? is independently absent or a hydrogen or a substituent; any two adjacent RA?, R1, R1?, and R2 can be joined or fused to form a ring; the ligand LA is coordinated to a metal, which is selected from Os, Ir, Pd, Pt, Cu, Ag, or Au; and (1) at least one of R1 and R2 is coordinated to the metal M, or (2) at least one RA? comprises a 5- or 6-membered carbocyclic or heterocyclic ring that is not directly fused to Ring A? and is coordinated to the metal M, or both (1) and (2) are true. Formulations, devices, and consumer products including the compound are also disclosed.

Abstract: Provided is a compound including a first ligand LA of Formula I, In Formula I, moiety A is a monocyclic ring or a multicyclic fused ring system; one of X1, X2, and X3 is C and is connected to X4; one of X1, X2, and X3 is N and is coordinated to a metal M; and the remaining one of X1, X2, and X3 is CR or N; X4 is C or N; Y is a divalent linking group; each R, R?, RA, and RB is independently hydrogen or a General Substituent; each of K1 and K2 is independently direct bond, O, or S; and metal M is selected from the group consisting of Os, Ir, Pd, Pt, Cu, Ag, and Au. Formulations, OLEDs, and consumer products including the same are also provided.

Abstract: Provided are organometallic compounds including a ligand LA of the following Formula I Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Provided are compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications. Also provided are formulations comprising these compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications. Further provided are OLEDs and related consumer products that utilize these compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications.