US 6,963,005 B2 · Compounds comprising phosphorus-containing metal complexes

Abstract

Compounds comprising phosphorus-containing metal complexes can be used in electroluminescent devices and have an emission maximum closer to the blue region of the visible light spectrum. The complexes can be used within an organic active layer in electronic devices, such as displays, detectors, voltaic cells, solid-state lighting, illumination devices or the like. The complexes may also be used as catalysts or as indicators in other applications. The new compounds can be used without the need of a host material. In non-limiting embodiments, Pt or Ir may be used for the metal atom within the complex, one ligand may include a phosphorus-containing bidentate ligand, and another ligand may include a monoanionic bidentate ligand. The phosphorus-containing bidentate ligand may include a benzyl group, a phenoxy group, a phenylamino group, or the like.

Claims24

Dependent claims

An electronic device comprising an active layer A comprising a complex, wherein the complex comprises:

a metal atom selected from Os, Ru, Rh, Pd, Ir, and Pt;
and
a phosphorus-containing bidentate ligand comprising a phosphorus atom and a group selected from a benzyl group, a phenoxy group, and a phenylamino group, wherein:
the phosphorus-containing bidentate ligand comprises a phenyl group and a first atom bonded to the phenyl group, wherein the first atom is selected from carbon, nitrogen, and oxygen;
the phosphorus atom is bonded to the first atom and the metal atom;
and
the metal atom is bonded to a second atom, wherein the second atom is a carbon atom that is part of the phenyl group.

4 more elements

Dependencies are inferred from the claim text.

Compounds comprising phosphorus-containing metal complexes

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Compounds comprising phosphorus-containing metal complexes

Life of this patent

Abstract

Claims24