Transition metal complexes comprising carbene ligands...

Details Transition metal complexes comprising carbene ligands... Transition metal complexes comprising carbene ligands...

2004-08-18

2010-12-07

Kosack, Joseph R (Department: 1626)

Semiconductor device manufacturing: process

Having organic semiconductive component

C548S103000

Reexamination Certificate

active

07846763

ABSTRACT:
Use of transition metal complexes of the formula (I) in organic light-emitting diodeswhere:M1is a metal atom;carbene is a carbene ligand;L is a monoanionic or dianionic ligand;K is an uncharged monodentate or bidentate ligand selected from the group consisting of phosphines; CO; pyridines; nitrites and conjugated dienes which form a π complex with M1;n is the number of carbene ligands and is at least 1;m is the number of ligands L, where m can be 0 or ≧1;o is the number of ligands K, where o can be 0 or ≧1;where the sum n+m+o is dependent on the oxidation state and coordination number of the metal atom and on the denticity of the ligands carbene, L and K and also on the charge on the ligands carbene and L, with the proviso that n is at least 1, and alsoan OLED comprising these transition metal complexes, a light-emitting layer comprising these transition metal complexes, OLEDs comprising this light-emitting layer, devices comprising an OLED according to the present invention, and specific transition metal complexes comprising at least two carbene ligands.

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