METAL COMPLEX WITH THREE DIFFERENT LIGANDS
First Claim
1. A compound having the Formula:
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L1L2MX,
Formula I;
wherein M is a metal having an atomic weight higher than 40;
wherein L1 is a ligand selected from the group consisting of Formula II, Formula III, and Formula IV;
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Abstract
Compounds comprising the formula L1L2MX wherein L1, L2, and X are distinct bidentate ligands that form an octahedral complex on the metal M, wherein M is a metal with an atomic weight greater than 40. Compounds of this formula are sublimated more facilely than octahedral metal complexes where L1, L2, and X are not distinct bidentate ligands. Organic light emitting devices are also described wherein the emissive layer may comprise a host material containing an emissive molecule of formula L1L2MX, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including iridium complexes of the formula L1L2IrX wherein L1, L2, and X are distinct bidentate ligands.
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Citations
21 Claims
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1. A compound having the Formula:
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L1L2MX,
Formula I;wherein M is a metal having an atomic weight higher than 40; wherein L1 is a ligand selected from the group consisting of Formula II, Formula III, and Formula IV; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A first device comprising a first organic light emitting device, further comprising:
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an anode; a cathode; and an organic layer, disposed between the anode and the cathode, comprising a compound having the formula;
L1L2MX,
Formula I;wherein M is a metal having an atomic weight higher than 40; wherein L1 is a ligand selected from the group consisting of Formula II, Formula III, and Formula IV; - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification