Abstract: A novel compound having a first ligand LA of is disclosed. The compound is useful as emitter dopant in OLEDs.

Abstract: A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent R1 at one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in R1 where that atom is the farthest away from the metal among the atoms in R1; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R1, the first distance is longer than the radius r by at least 2.9 ?.

Abstract: Provided are organic compounds which comprise a pyrrole or imidazole ring which is fused to a 6-membered ring as well as to a further 5- or 6-membered ring, and wherein the pyrrole or imidazole nitrogen is further substituted with a 6-membered ring. Also provided are formulations comprising these organic compounds. Further provided are organic light-emitting devices (OLEDs) and related consumer products that utilize these organic compounds.

Abstract: A compound comprising a first bidentate ligand LA having a structure of Formula I, is provided. In Formula I, each of Y1 to Y12 is CR or N; each R can be same or different; each R is hydrogen or a substituent; at least one pair selected from Y3-Y4, Y7-Y8, or Y11-Y12 are CR and the Rs are joined or fused into a ring; and LA is complexed to a metal M selected from the group consisting of Os, Ir, Pd, and Pt. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound of a first ligand LA of Formula I, is provided. In Formula I, moieties A and B are each a monocyclic ring or a polycyclic fused-ring system; Z1 to Z4 are each C or N; K is a direct bond, O, or S; each RA and RB is independently a hydrogen or a General Substituent; at least one RA or RB is R*, wherein R* has a structure of Formula II, —L—GeR1R2R3; L is a direct bond or an organic linker; and LA is coordinated to a metal M by the dashed lines; and metal M is selected from Ir, Rh, Re, Ru, Os, Pt, Pd, Ag, Au, or Cu.

Abstract: A compound comprising a first ligand LA of Formula I, where moiety A has a structure of Formula II, or Formula III, and G comprises a structure of Formula IV, is provided. In LA, moiety B is one or more rings; ring C is a 5- or 6-membered ring; each of Z1, Z2, Z3, and X1 to X8 is C or N; K is a direct bond or selected from the group consisting of O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); each R?, R?, RA, RB, RC, and RD is hydrogen or a General Substituent; LA is coordinated to a metal M selected from the group consisting of Ir, Rh, Re, Ru, Os, Pt, Pd, Ag, Au, and Cu; and any two substituents may be joined or fused to form a ring. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: The present invention relates in part to compounds containing indolocarbazole and terphenyl building blocks. These compounds are useful for application in organic electroluminescent devices wherein the combination of indolocarbazoles with terphenyl groups leads to novel compounds that demonstrate superior device performance.

Abstract: A compound comprising a ligand LA coordinated to a metal M, the ligand LA selected from the group consisting of Formula I, Formula II, and Formula III ring A is a 5- or 6-membered carbocyclic or heterocyclic ring; wherein ring A of Formula I connects to ring B at X1, X2, or X3 to form a five-membered chelate ring with the metal; Z1 and Z2 are independently selected from C or N; and X1 to X10 are independently selected from C or N. An organic light emitting device (OLED) comprising an anode, a cathode and an organic layer disposed between the anode and the cathode, the organic layer comprising a compound selected from Formula I, Formula II, or Formula III, and a consumer product comprising the OLED.

Abstract: A compound having a first ligand LA of Formula I, is provided. In Formula I, Z is C or N; at least one of X1 to X5 is N, and the remainder are C; if X1 is N, then X5 is C; K is selected from the group consisting of a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); each R?, R?, RA and RB is a hydrogen or a General Substituent; LA is coordinated to a metal M; and Ring A coordinates to M through a metal carbene bond. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A composition including a first compound capable of functioning as a phosphorescent emitter in an OLED is provided. The first compound has at least one aromatic ring and at least one substituent R directly bonded to one of the at least one aromatic rings. Each substituent R has the formula of where (a) G1 is selected from NR1, SiR1R2, GeR1R2, alkyl, cycloalkyl, and combinations thereof; and G2 is a non-aromatic polycyclic group; (b) G1 is a direct bond; and G2 is a non-aromatic spiro polycyclic group; or (c) G1 is selected from direct bond, NR1, SiR1R2, GeR1R2, alkyl, cycloalkyl, and combinations thereof; G2 is a non-aromatic polycyclic group; and R is directly bonded to a phenyl, pyridine, or triazine. R1, R2, and R3 are are a variety of substituents. Formulations and devices, such as an OLEDs, that include the first compound are also described.

Abstract: A compound of Formula Ir(LA)x(LB)y(LC)z is provided, where x is 1 or 2, each of y and z is 0, 1, or 2, at least one of y and z is not 0, and x+y+z=3. Ligand LA has a structure of Formula I, where LB and LC are bidentate ligands; LA, LB, and LC are different; ring B is a 5-membered or 6-membered ring; each of X1 to X10 is C or N; ring C is bonded to ring A1 by a C; each RA, RB, and RC is independently hydrogen or a General Substituent; with the exception that no RB can be joined or fused to an RC, any two substituents may be joined or fused to form a ring; and at least two RC substituents are joined together to form a fused ring. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound of Formula I, is provided where moieties B and D are monocyclic or polycyclic rings; M is Pt or Pd; each of X1 to X7, Z1, and Z2 is C or N; Y1 and Y2 are each independently linking groups; L1 and L2 are each independently absent a bond, a direct bond, or a linking group; K is selected from the group consisting of a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?). Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, rings A and B are 5- or 6-membered ring; K1 and K2 are each independently selected from the group consisting of a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); Z1, Z2, X1 and X2 are C or N; Y1*, Y2*, Y3*, Y4*, and Y5* are selected from a variety of moieties; n is 0 or 1; Y5* is bonded directly to X2 when n is 0; each R?, R?, R, R?, R1, R2, RA, and RB is hydrogen or a substituent; each independently represents a single bond or double bond in a Lewis structure; and LA is coordinated to a metal M, which may be coordinated to other ligands. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, each of X1 to X12 is C or N; Y is a linking group; each RA, RB and RC can be hydrogen or a substituent; at least one RA, RB or RC comprises an electron-withdrawing group; and LA forms a 5-membered chelate ring with an Ir atom via the dashed lines. In addition a number of conditions must be met based on whether or not any pair of RA is joined to form a ring. Formulations, OLEDs, and consumer products containing the compound are also provided.

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 Z1 to Z4 is C or N; one of K1 or K2 is a direct bond, and the other is a direct bond or a linker; L is a linker; each R?, R?, R, R?, RA, and RB is a General Substituent defined herein; LA is coordinated to a metal M; and the compound includes at least a silyl group, a germyl group, or an electron-withdrawing group. Formulations, OLEDs, and consumer products containing the same are also provided.

Abstract: A compound of Ir(LA)m(LB)3-m, having a structure of Formula I, is provided. In Formula I, moieties A and B are each either a monocyclic ring or a polycyclic fused ring system; X1 to X4 and Z1 to Z4 are C or N; Y is a single atom linker, which can be substituted; each R1, R2, R3, R4, and R5 is hydrogen or a General Substituent; m is 1 or 2; at least one of R1, R2, and R3 comprises at least one first electron-withdrawing group; and at least one of R4 and R5 comprises at least one second electron-withdrawing group. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound having a structure of formula Ir(LA)x(LB)y(LC)z is provided. In Ir(LA)x(LB)y(LC)z, x is 1, 2, or 3; y is 0, 1, or 2; z is 0, 1, or 2; x+y+z=3; LA has a structure of Formula I, and each of LB and LC is independently a bidentate ligand. In Formula I, moiety A is monocyclic ring or a polycyclic fused ring system; moiety B is a fused bicyclic system; Z1, Z2, and Z3 are each C or N; each RA and RB is hydrogen or a General Substituent defined herein; at least one RA or RB includes an electron-withdrawing group; LA is coordinated to Ir through the indicated dashed lines to form a 5-membered chelate ring; and any two substituents may be joined or fused to form a ring.

Abstract: An OLED including an anode, a cathode, and an organic layer between the anode and the cathode, where the organic layer includes a compound having the formula [LA]3-nIr[LB]n is disclosed.

Abstract: Provided is a compound of Formula of Ir(LA)n(LB)m(LC)o, wherein ligand LA has a structure of Formula I, ligand LB has a structure of Formula II, and LC is a bidentate ligand; and wherein n is 1, or 2; m is 1, or 2; o is 0, or 1; and n+m+o=3; and all the remaining variables are defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound of Ir(LA)m(LB)3-m, having a structure of Formula I, useful as emitters in OLEDs is provided. The variables in Formula I are defined in the present disclosure.