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

Abstract: Provided are organometallic complexes including 5-membered heterocyclic rings. The compounds include a ligand LA having a structure of Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.

Abstract: A compound having the formula Ir(LA)(LB), where LA has a structure of Formula I and LB is a bidentate ligand is disclosed. In the structure of Formula I, rings A, B, C, and D are each independently 5- or 6-membered carbocyclic or heterocyclic rings; each of Z1 to Z8 is C or N; LA has at least one Ir—C bond; L is CR or N; each R1 R2, R3, and R4 is independently hydrogen or one of the preferred general substituents; and any two substituents may be joined or fused together to form a ring. Organic light emitting devices, consumer products, and formulations containing the compounds are also disclosed.

Abstract: An OLED including an organic layer that contains metal complex compounds that are useful as a phosphorescent emitter is disclosed. The metal complex compounds include ligands that incorporate fluorinated side chains and has at least one substituent R selected from the group consisting of partially fluorinated alkyl, partially fluorinated cycloalkyl, and combinations thereof, wherein R is directly bonded to an aromatic ring, In the compound, C having an F attached thereto is separated by at least one carbon atom from the aromatic ring.

Abstract: Provided are organometallic compounds having 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 organometallic compounds of Formula I Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Novel ligands for metal complexes containing five-membered ring fused on pyridine or pyrimidine ring combined with partially fluorinated side chains exhibiting improved external quantum efficiency and lifetime are disclosed.

Abstract: Provided are Platinum and Iridium complexes with spiro[4.4]nonane and analogs—including ligands. Also provided are formulations including these Platinum and Iridium complexes with spiro[4.4]nonane and analogs—including ligands. Further provided are OLEDs and related consumer products that utilize these Platinum and Iridium complexes with spiro[4.4]nonane and analogs—including ligands.

Abstract: A compound of Formula I or Formula II wherein Y is selected from the group consisting of O, S, and NRN; and (a) L1 and L2 are the same or different and are each a mono-anionic bidentate ligand; and R is selected from the group consisting of hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; or (b) R joins with L1 of the Formulae I or II to form a ring B1 of formula B and formula C, respectively, and L2 is L3 and L3 is a tridentate ligand of formula D wherein ring C, ring D, and ring E are each independently selected from the group consisting a 5-membered aryl, a 5-membered heteroaryl, a 6-membered aryl, and a 6-membered heteroaryl; X1 to X4 are independently selected from C or N, and no more than two of the X1 to X4 is N; Z1 to Z7 are

Abstract: A compound including a first ligand LX of Formula II is disclosed, where F is a 5-membered or 6-membered carbocyclic or heterocyclic ring; each RF and RG independently represents mono to the maximum possible number of substitutions, or no substitution; Z3 and Z4 are each independently C or N and coordinated to a metal M to form a 5-membered chelate ring; G is a fused ring structure comprising five or more fused heterocyclic or carbocyclic rings, of which one or two rings are of Formula III the fused heterocyclic or carbocyclic rings in the fused ring structure G are 5-membered or 6-membered; of which if two or more 5-membered rings are present, at least two of the 5-membered rings are fused to one another; Y can be one of BR?, NR?, PR?, O, S, Se, C?O, S?O, SO2, CR?R?, SiR?R?, and GeR?R?; the metal M can be coordinated to other ligands; and the ligand LX can be linked with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand.

Abstract: Provided are a compound including a ligand LA of Formula I that are useful as emitters in organic light emitting devices.

Abstract: A compound having a structure of Formula I In Formula I, M is Pd or Pt; each of X1 to X12 is independently C or N; ring A is a 5-membered or 6-membered ring; K1 and K2 are selected from a direct bond, O, S, and NR; L1 is an organic linker; Y1 is selected from O, S, BR, PR, Se and NRY; each R, R?, R?, RL, RY, RA, RB, RC, and RD is hydrogen or a substituent; and any two substituents can be joined or fused to form a ring. Further provided are OLEDs and related consumer products that utilize these compounds.

Abstract: A compound having a structure of Formula I, is provided. In Formula I, X1-X7, Z1 and Z2 are each independently C or N; Z3 is selected from BR?, NR?, PR?, O, S, Se, C?O, S?O, SO2, CR?R?, SiR?R?, and GeRR?; L is selected from O, S, and NR; C1, C2, and C3 are all carbon atoms; the bonds represent single bond or double bond to fulfill the valency requirement of a neutral compound; each R1, R2, R3, R, R?, R?, RA, and RB is independently hydrogen or a substituent; and any two of R1, R2, R3, R, R?, R?, RA, and RB can be joined or fused together to form a ring. Further provided are OLEDs and related consumer products that utilize these compounds.

Abstract: Provided are organometallic compounds of formula Os(LA)x(LB)y(LC)z, where LA has a structure of Formula I with the two indicated dashed lines for coordination to Os: Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Provided are organometallic compounds having a structure of 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 organometallic compounds including a ligand LA of 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 including a ligand LA of the following Formula I: that contain heavy elements like Sb, Bi, or Te. Also provided are formulations including such compounds. Further provided are OLEDs and related consumer products that utilize such compounds.

Abstract: A compound including a first ligand LA of Formula I, is disclosed. In Formula I, ring B is a 5- or 6-membered ring; X1, X2, and X3 are each CRA 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, X1 and X2 are N, and X3 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; Q1 to Q6 are each C or N; and, when proviso (2) applies, (I) at least one of X1, X2, and X3 is N; or (II) R is two or more fused or unfused 5- or 6-membered carbocyclic or heterocyclic rings, or (III) at least ring A or R is substituted with a partially or fully deuterated alkyl or partially or fully deuterated cycloalkyl group.

Abstract: Provided are Platinum and Iridium complexes with spiro[4.4]nonane and analogs-including ligands. Also provided are formulations including these Platinum and Iridium complexes with spiro[4.4]nonane and analogs-including ligands. Further provided are OLEDs and related consumer products that utilize these Platinum and Iridium complexes with spiro[4.4]nonane and analogs-including ligands.

Abstract: Provided are organometallic compounds including a ligand LA having a structure of Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.