Abstract: A compound including a first bidentate ligand LA that includes a structure of Formula I, are provided. The ligand LA is coordinated to a metal M and can be joined with other ligands. In Formula I, in addition to some exclusions, each of X1, X2, X3, and X4 is C or N; two R1, R2, and R3 can be joined or fused to form a ring; and each R1, R2, and R3 is independently a group containing the metal M, a hydrogen, or a General Substituent defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are a compounds comprising a first ligand LA of

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: An organometallic compound including a first ligand LA selected from is provided. In ligand LA, each of Y1 to Y10 is carbon or nitrogen; moiety B is a monocyclic or polycyclic fused ring structure comprising 5-membered and/or 6-membered rings; any two RA and RB can be fused or joined to form a ring; X is selected from O, S, Se, or NR; each RA and RB is independently hydrogen or a General Substituent; at least one R, RA, or RB is deuterium or a linking group between LA and another ligand that includes a deuterium substituted aromatic ring; and LA is coordinated to a metal M, selected from Os, Pd, Pt, Ir, Cu, Ag, or Au; and the compound is capable of emitting light with a peak maximum wavelength (?max)?700 nm at room temperature.

Abstract: A compound including a first ligand LA of Formula I, is disclosed. In Formula I, moiety A is a monocyclic or polycyclic ring structure comprising 5-membered and/or 6-membered rings; each R1 and RA is independently hydrogen or a general substituent; LA is coordinated to a metal M, selected from the group consisting of Os, Ir Pd, Pt, Cu, Ag, and Au; metal M can be coordinated to other ligands; and any two of R1 and RA can be joined or fused together to form a ring. Formulations, OLEDs, and consumer products containing the compound, as well as, methods of making the compound are also disclosed.

Abstract: A compound of Formula Ir(LA)(LB)(LC) is disclosed. In Formula Ir(LA)(LB)(LC), LA has Formula I, LB has Formula II, LC is a monoanionic bidentate ligand that does not comprise a phenylpyridine ligand; and each of LA, LB, and LC is different. Each of moieties A, C, and D is independently a monocyclic ring or a polycyclic fused ring structure or 5-membered and/or 6-membered rings; each of X1 to X6 is C or N; each of Z1 and Z2 is C or N; at least one of Z1 and Z2 is N; each RA, RB, RC, and RD is independently a hydrogen or a General Substituent; and any two adjacent substituents can be joined or fused together to form a ring. Formulations, OLEDs, and consumer products including the compound are also disclosed.

Abstract: A compound comprising a first ligand LA of Formula I, is disclosed. In Formula I, ring A is a 5- or 6-membered ring; K is selected from a direct bond and a linking group; two adjacent ones of X1 to X4 are CR and are fused to form a structure of Formula II, each of X1 to X12 is CR or N; X is selected from a variety of linking groups; each R, R?, R?, and RA is hydrogen or a substituent; LA is coordinated to a metal M through the dashed lines in Formula I; and wherein (1) when X is CR?R?, X5 is CR; and (2) when X is O, S, Se, or NR?, at least one of the following is true: (a) the metal M is further coordinated to at least one substituted or unsubstituted acetylacetonate ligand; (b) at least one R comprises an electron withdrawing group; (c) at least two RA is not hydrogen or deuterium; or (d) at least one R is selected from a specific group of structures.

Abstract: A compound including ligand LA of Formula I, where LA includes at least one deuterium atom is provided. In Formula I, moiety A and B are monocyclic rings or polycyclic fused rings; K1 and K2 are direct bond, O, or S; and either (1) two RA or two RB substituents are joined together to form a fused ring structure of Formula II, where Formula II is joined to ring A or ring B, respectively, by the dashed lines, and Y is Se or GeR?R?; or (2) at least one RA or RB comprises a structure of Formula III, and Y is Se or GeR?R?; where Formula III is not fused to either of ring A or ring B. Formulations, OLEDs, and consumer products including the compound are also provided.

Abstract: Compound of Formula I, is provided. In Formula I, rings A, B, C, and D are 5- or 6-membered rings; each of X1-X5, X21-X22, and Z1-Z3 is C or N; each of L1, L2, and L3 is selected from a direct bond or a divalent linker; each of a and b is 0 or 1; Y is 0, S, Se, or NRY; W is O, S, NRW, C?RW, or CRWRW?; up to 1 of Z1 to Z3 is N; each R, R?, RA, RB, RC, RD, RY, RW, and RW? is hydrogen or a substituent. Formulations, OLEDs, and consumer products containing the same are also disclosed.

Abstract: Disclosed are support-activators and catalyst compositions comprising the support-activators for polymerizing olefins in which the support-activator includes clay heteroadduct, prepare from a colloidal phyllosilicate such as a colloidal smectite clay, which is chemically-modified with a heterocoagulation agent. By limiting the amount of heterocoagulation reagent relative to the colloidal smectite clay as described herein, the smectite heteroadduct support-activator is a porous and amorphous solid which can be readily isolated from the resulting slurry by a conventional filtration process, and which can activate metallocenes and related catalysts toward olefin polymerization. Related compositions and processes are disclosed.

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

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 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 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: 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: Disclosed are support-activators and catalyst compositions comprising the support-activators for polymerizing olefins in which the support-activator includes clay heteroadduct, prepare from a colloidal phyllosilicate such as a colloidal smectite clay, which is chemically-modified with a heterocoagulation agent. By limiting the amount of heterocoagulation reagent relative to the colloidal smectite clay as described herein, the smectite heteroadduct support-activator is a porous and amorphous solid which can be readily isolated from the resulting slurry by a conventional filtration process, and which can activate metallocenes and related catalysts toward olefin polymerization. Related compositions and processes are disclosed.

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: 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: 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.