Osmium complexes and related organic light-emitting devices

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Reexamination Certificate

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C428S917000, C313S504000, C313S506000, C257S102000, C257S103000, C257SE51044, C252S301160, C252S301350

Reexamination Certificate

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07416791

ABSTRACT:
Osmium complexes having the formula [Os(II) (N—N)2L—L]2+2A−(or A2−), or [Os(II) N—N(L—L)2]2+2A−(or A2−), where N—N is a bipyridine or phenanthroline ligand, L—L is a π-acid bidentate ligand, and A is counter ion.

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