Abstract: A compound comprising a hexadentate ligand of Formula I coordinated to a metal selected from the group consisting of iridium, rhodium, and osmium; wherein rings A, B, C, D, E, and F are independently a 5-membered or 6-membered heteroaryl ring, or a 6-membered aryl ring; T1, T2, T3, T4, T5, and T6 are independently selected from C or N, wherein two to four of T1 to T6 are C, and two to four of T1 to T6 are N; Z1, Z2, Z3, and Z4 are independently selected from C or N, wherein if Z1 and Z2 are each N then T1 is a carbene carbon and two of T2 to T6 are N; Y1 and Y2 are independently selected from the group consisting of CR, SiR, B, or N; W1-W7 are independently selected from the group consisting of a direct bond, BR, BRR?, NR, PR, O, S, Se, C?X, S?O, SO2, CR, CRR?, SiRR?, GeRR?, alkyl, cycloalkyl, aryl, heteroaryl, and combinations thereof; wherein X is selected from the group consisting of O, S, Se, NR?, and CR?R??; RA to RF independently represent mono to the maximum allowable substitution, or no substitu

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 comprising an Ir atom as the central metal atom which is coordinated by two three-dentate ligands. Also provided are formulations comprising these organometallic compounds comprising an Ir atom. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds comprising an Ir atom.

Abstract: A compound comprising a first bidentate ligand LA, wherein LA comprises a structure of Formula I; wherein Z is selected from the group consisting of O, S, NR, BR, CRKRL, SiRKRL, —CRKRLCRMRN—, —SiRKRLSiRMRN—, —CRKRLO—, —SiRKRLO—, and —CRK?CRL—; wherein ring A, ring B, and ring C are each independently a 5-membered carbocyclic ring, 5-membered heterocyclic ring, 6-membered carbocyclic ring or 6-membered heterocyclic ring; wherein LA is coordinated to a metal M forming a 5-membered chelate ring; wherein M is selected from the group consisting of Ir, Pt, Pd, Ru, Rh, Os, Re, Cu, Ag, and Au; wherein RA, RB, and RC each represent mono to the maximum allowable substitution, or no substitution; wherein each R, RK, RL, RM, RN, RA, RB, and RC is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, car

Abstract: Compounds of Formula I, are provided.

Abstract: Provided are organometallic compounds wherein a boron containing group bridges two monocyclic or fused polycyclic ring systems each independently comprised of one or more 5-membered or 6-membered rings. 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 including a first ligand LA of Formula I is disclosed. The compound is useful as an emitter in phosphorescent OLEDs.

Abstract: A compound having the formula: is disclosed. The compound is useful as emitters in OLEDs.

Abstract: Provided are a compound having a metal M and a first ligand LA comprising the structure of where the compound is capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature.

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: Compounds having a structure of Formula I, are provided. In Formula I, moieties B, C, and D are each a monocyclic ring or a fused polycyclic ring system; M is Pd or Pt; each of Z1 to Z3 is C or N; each of K1, K2, and K3 is a single bond or a linker; n=0 or 1; if n is 0, then one RA is joined with one RD; when present L is a direct bond or a linker; each R variable is independently a hydrogen or a General Substituent; and at least one of four conditions each of which increases the Vertical Dipole Ratio of the compound is true.

Abstract: A compound comprising a ligand LA, having a structure of Formula I, is provided. In Formula I, A1 to A8 are each independently CR or N; at least two adjacent ones of A1 to A8 are CR and the Rs are joined together to form a six-membered ring fused to ring A or ring C; X is O, S, or Se; each R and RB is independently hydrogen or a substituent; any adjacent substituents are optionally joined or fused into a ring; the ligand LA is coordinated to a metal M; the metal M is bonded to ring A through a M-C bond; the metal M can be coordinated to other ligands; and the ligand LA is optionally linked with other ligands. Formulations, OLEDs, and consumer products containing such compounds are also disclosed.

Abstract: The present invention includes a series of novel osmium bis(tridenatate) complexes with emission profiles in the near-infrared region.

Abstract: A compound having a structure of Formula I, and a structure of Formula II, fused directly or indirectly to one of moiety A, B, C, or D is provided. In Formulae I and II, each of moieties A, B, C, and D is a monocyclic ring or a polycyclic fused ring system; one of Z1, Z2, and Z3 is N and the other two are C; each of L1, L2, and L3 is a direct bond or a linker; K1 is a direct bond, O, or S; M is Pt or Pd; represents a single bond or a double bond; each of X1 to X6 is C or N; each of Q1, Q2, and Q3 is CRQ or CRQRQ?; n is 1 to 5; and each R, R?, RA, RB, RC, RD, RF, RQ, and RQ? is hydrogen or a General Substituent. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound having a formula of Ir(LA)n(LB)m(LC)o is provided, where LA has a structure of Formula IA, LB has a structure of Formula IB, and LC is a bidentate ligand. In formula Ir(LA)n(LB)m(LC)o, Formula IA, and Formula IB: m, n, and o are integers and their sum is 3; each of Z1, Z2, Z3, Z4, and X1 to X12 is C or N; each of moiety A and moiety B is a monocyclic ring or a polycyclic fused ring system; the ring comprising Z3 and Z4 is a 5-membered heterocyclic ring; Y is as linking group; each R, R?, R?, R1, R2, R3, R4, and R5 is hydrogen or a General Substituent; and at least one pair of R1 or one pair of R2 are joined to form moiety I, which is a heterocyclic moiety. Formulations, OLEDs, and consumer products containing the compound are also provided.

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: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, moiety A is a heterocyclic fused ring system comprising a 5-membered ring fused to a 6-membered ring; moiety B is an aromatic ring or fused ring system; each RA and RB is independently a hydrogen or a General Substituent; K is a direct bond, O, or S; at least one of RA and RB comprises a substituent R comprising a silyl group or a germyl group; ligand LA is coordinated to a metal M, which has an atomic mass of at least 40; and metal M may be coordinated to other ligands. Formulations, OLEDs, and consumer products containing the same are also provided.

Abstract: Provided is a compound having a formula of Ir(LA)p(LB)q(LC)r, wherein LA has a structure of Formula IA: LB has a structure of Formula IB; and LC is a bidentate ligand. In the compound p+q+r=3; each of moieties A, B, and D is a monocyclic ring or a polycyclic fused ring system; Z1 to Z4 and X1 to X8 are each C or N; two adjacent RC or RE are joined to form Formula II, Y1 and Y2 are each linking groups; Z is CRZ or N; each R, R?, RA, RB, RC, RD, RE, RF, and RZ is hydrogen or a General Substituent defined herein; and at least one of RA or RB comprises a silyl or germyl group. Formulations, OLEDs, and consumer products containing such compounds are also provided.

Abstract: A compound comprising a first ligand LA having a structure of Formula IA, is provided. In Formulae IA, moiety A is a monocyclic ring or a polycyclic fused ring system; X for each occurrence is independently C or N, with two adjacent of them being C and fused to moiety B through the two dotted lines; each of X1 to X5 is C or N; Y is a linking group; K is a direct bond or a linking group; and R1 is a substituent. If moiety A has a structure of Formula V, then (1) R2 has a structure of Formula VI, (2) R2 is a cycloalkyl or heterocycloalkyl group, or (3) R2 is an alkyl or heteroalkyl group, and two RB substituents are joined together to form a ring. Formulations, OLEDs, and consumer products containing such compounds are also provided.

Abstract: Provided are compounds having a first ligand LA of that are useful in OLEDs as emitters.