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: A compound comprising a structure of Formula I, is provided. In Formula I, each of X1 to X10, X1? to X4?, and X8? to X10? is independently C or N, but is C if attached to an R; each of R1 to R6 and RA to RG is hydrogen or a General Substituent defined herein; any two substituents may be joined or fused to form a ring; and at least one of six different conditions is met regarding RA, RB, or R3 to R6. Formulations, OLEDs, and consumer products containing the compound are also provided.

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

Abstract: Provided are organometallic compounds comprising a Pt or Pd as the central metal atom which is coordinated by a tetradentate ligand comprising a saturated carbene ring and at least one 6-membered aromatic carbocyclic ring. 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 comprising a first ligand LA of Formula I, is provided. In Formula I, each of moiety A and moiety B is a monocyclic ring or a polycyclic fused ring system; each of X1 to X4 is C, N, or B; Z1 and Z2 are C or N; Y is a one-atom long linker; K1 and K2 are a direct bond or a one-atom long linker, where one of K1 and K2 is a linker; each R, R?, R?, R?, RA and RB is a hydrogen or a General Substituent defined herein; and LA is coordinated to a metal M having an atomic mass of at least 40. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are neutral Pt or Pd compounds comprising a tridentate and a monodentate ligand, wherein the tridentate ligand comprises at least three 5- or 6-membered rings. Also provided are formulations comprising these neutral Pt or Pd compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these neutral Pt or Pd compounds.

Abstract: Provided are compounds comprising a ligand which comprises at least one 7-membered or larger carbocyclic or heterocyclic ring and at least one 5-membered or 6-membered carbocyclic or heterocyclic ring. Also provided are formulations comprising these compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these compounds.

Abstract: Provided are organometallic compounds comprising an at least bidentate ligand comprising at least five cyclic moieties and a central metal ion which is preferably Ir or Pt. 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: 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: 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 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: 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.