Universal Display Corporation

Llorenç Benavent

Jui-Yi Tsai

Alexey Borisovich Dyatkin

Pierre-Luc T Boudreault

Miguel A Esteruelas

Ana M Lopez

Zhiqiang Ji

Enrique Oñate

Morgan C Macinnis

Morgan C MacInnis

A compound comprising a hexadentate ligand of Formula I coordinated to a metal selected from the group consisting of iridium, rhodium, and osmium;

Organic electroluminescent materials and devices

A compound comprising a hexadentate ligand of Formula I coordinated to a metal selected from the group consisting of iridium, rhodium, and osmium 

A compound having the formula Ir(L)(L), where Lhas a structure of Formula I and Lis 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 Zto Zis C or N; Lhas at least one Ir&#x2014;C bond; L is CR or N; each RR, R, and Ris 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.

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Saragossa, Spain

Llorenç Benavent