Abstract: A compound of Formula I wherein L is a bidentate ligand coordinated to a metal M; each ring K is the same, and represents a 5-membered or 6-membered heteroaryl ring and with ring J forms a 5-member cyclometallated ring; A1 and A1? are the same and selected from CR1 or N; A2 and A2? are the same and selected from CR2 or N; A3 and A3? are the same and selected from CR3 or N; each R4 with its corresponding ring position R4? are the same, and R1 to R5 are as defined in the specification. An OLED with an organic layer that includes a compound of Formula I and a consumer product that includes the OLED. A method of making a compound of Formula I is also described.

Abstract: Provided are organoiridium compounds that are useful as emitters in OLEDs. The compounds have Formula I L1L2Ir-L-IrL3L4 where: L is a bis-bidentate ligand including two or more aromatic rings; one of the two or more aromatic rings is bonded to the two Ir atoms at the same time; and each of L1, L2, L3, and L4 is independently a bidentate N-heterocyclic carbene ligand or a substituted or unsubstituted acetylacetonate ligand with L1, L2, L3, and L4 each being the same or different. Also provided are formulations including these organoiridium compounds. Further provided are OLEDs and related consumer products that utilize these organoiridium compounds.

Abstract: Provided are organoiridium compounds of Formula Ir(LA)x(LB)y(LC)z, where: x is 1 or 2; y is 1 or 2; z is 0 or 1; x+y+z=3; and LC is a monoanionic bidentate ligand. Also provided are formulations comprising these organoiridium compounds. Further provided are OLEDs and related consumer products that utilize these organoiridium compounds.

Abstract: A compound of Formula I wherein L is a bidentate ligand coordinated to a metal M; each ring K is the same, and represents a 5-membered or 6-membered heteroaryl ring and with ring J forms a 5-member cyclometallated ring; A1 and A1? are the same and selected from CR1 or N; A2 and A2? are the same and selected from CR2 or N; A3 and A3? are the same and selected from CR3 or N; each R4 with its corresponding ring position R4? are the same, and R1 to R5 are as defined in the specification. An OLED with an organic layer that includes a compound of Formula I and a consumer product that includes the OLED. A method of making a compound of Formula I is also described.