The present invention relates to a platinum metal complex and an application thereof in an organic light-emitting device. The platinum metal complex is a compound having a structure of chemical formula (I). An organic light-emitting device to which the compound is applied has a relatively low driving voltage, a relatively high luminous efficiency and improved service life to a certain extent; therefore, the complex has the potential of being applied in the field of organic light-emitting devices. Also provided is an organic light-emitting device, including a cathode, an anode, and an organic layer. The organic layer is one or more of a hole injection layer, a hole transport layer, a light-emitting layer, a hole blocking layer, an electron transport layer, and an electron injection layer; and at least one layer in the organic layer contains the compound of structural formula (I).

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In one aspect, phosphine compounds comprising three adamantyl moieties (PAd.sub.3) and associated synthetic routes are described herein. Each adamantyl moiety may be the same or different. For example, each adamantyl moiety (Ad) attached to the phosphorus atom can be independently selected from the group consisting of adamantane, diamantane, triamantane and derivatives thereof. Transition metal complexes comprising PAd.sub.3 ligands are also provided for catalytic synthesis including catalytic cross-coupling reactions.

A compound of Formula I,

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is provided. In Formula I, M is Pt or Pd; rings B, C, and D are each independently 5-membered or 6-membered rings; X.sup.1 to X.sup.5 are C or N, with at lest two being C; K.sup.1 is O or S; Z.sup.3 is C or N; each represents a single bond or a double bond; L.sup.1 is a linker, each R, R′, R″, R.sup.1, R.sup.A, R.sup.B, R.sup.C, and R.sup.D is independently hydrogen or a substituent selected from the group general substituent; and any two substituents may be joined or fused together to form a ring. Formulations, OLEDs, and consumer products including the compound of Formula I are also provided.

In one aspect, phosphine compounds comprising three adamantyl moieties (PAd.sub.3) and associated synthetic routes are described herein. Each adamantyl moiety may be the same or different. For example, each adamantyl moiety (Ad) attached to the phosphorus atom can be independently selected from the group consisting of adamantane, diamantane, triamantane and derivatives thereof. Transition metal complexes comprising PAd.sub.3 ligands are also provided for catalytic synthesis including catalytic cross-coupling reactions.

A compound of Formula I

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is provided. In Formula I, ring A is a heterocyclic ring; ring B is a 5- or 6-membered ring, and rings C and D are 6-membered rings; one of Z.sup.1, Z.sup.2, and Z.sup.3 is N and the remainder are C; at least one of K.sup.1, K.sup.2, and K.sup.3 is O or S; one of L.sup.1 and L.sup.2 is absent and the other one is a direct bond or a linker; when m=0, L.sup.1 is not present and X.sub.1 is NR.sup.A′; each R, R′, R″, R.sup.A′, R.sup.A, R.sup.B, R.sup.C, and R.sup.D is independently hydrogen or a substituent selected from the general substituents defined herein; and any two substituents may be joined or fused together to form a ring. Formulations, OLEDs, and consumer products incorporating such compounds are also provided.

Novel phosphorescent tetradentate platinum compounds of Formula I are provided. The complexes contain a dibenzo moiety, which allows for the creation of OLED devices with improved properties when compounds of Formula I are incorporated into such devices. Compounds of Formula I′ that comprise two ligands that contain a 5-membered carbocyclic or heterocyclic ring, one of which contains an imidazole ring with a twisted aryl group attached to N−1 and a second aromatic ring that is attached to the platinum via a carbon atom. These compounds may be advantageously used in OLEDs.

The invention relates to metal complex compounds of the formula M.sub.k(L).sub.x(Y).sub.kz-nx, where the ligand L has the formula (I), and to metal complex compounds which include the reaction product of at least one salt or a complex of a transition metal or a main group metal element of the groups 13 to 15 and at least one 1,3-ketoamide. Such complex compounds are suitable in particular as catalysts for polyurethane compositions. The invention also relates to two-component polyurethane compositions including at least one polyisocyanate as the first component, at least one polyol as the second component, and at least one such metal complex compound as the catalyst. The invention additionally relates to different uses of the two-component polyurethane compositions.

In one aspect, phosphine compounds comprising three adamantyl moieties (PAd.sub.3) and associated synthetic routes are described herein. Each adamantyl moiety may be the same or different. For example, each adamantyl moiety (Ad) attached to the phosphorus atom can be independently selected from the group consisting of adamantane, diamantane, triamantane and derivatives thereof. Transition metal complexes comprising PAd.sub.3 ligands are also provided for catalytic synthesis including catalytic cross-coupling reactions.

A compound of Formula I ##STR00001##
having isoindoline moiety is disclosed. Their unique configuration of the fused rings enable the compound to exhibit phosphorescent emission in red color region to near infrared region and are useful as emitter materials in organic electroluminescence device.

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an interlayer between the first electrode and the second electrode and including an emission layer; and an organometallic compound of Formula 1:

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wherein, in Formula 1, the variables are described herein.