Complexes and devices, such as organic light emitting devices and full color displays, including a compound of the formula wherein: M is Pd.sup.2+, Ir.sup.+, Rh.sup.+, or Au.sup.3+; each of V.sup.1, V.sup.2, V.sup.3, and V.sup.4 is coordinated to M and is independently N, C, P, B, or Si; each of L.sup.1, L.sup.2, L.sup.3, and L.sup.4 is independently a substituted or unsubstituted aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, carbene, or N-heterocyclic carbene; and Z is O, S, NR, CR.sub.2, SiR.sub.2, BR, PR, where each R is independently substituted or unsubstituted C1-C4 alkyl or substituted or unsubstituted aryl.

The present invention relates to binuclear metal complexes and electronic devices, in particular organic electroluminescent devices containing said metal complexes. ##STR00001##

Bisphosphite ligands based on benzopinacol and 1,3-propanediol, and the use thereof in hydroformylation.

A process for the synthesis of a cationic rhodium complex comprises the steps of: (a) forming a mixture of a rhodium-diolefin-1,3-diketonate compound and a phosphorus ligand in a ketone solvent, (b) mixing an acid with the mixture to form a solution of the cationic rhodium complex, (c) evaporating at least a portion of the solvent from the solution, (d) optionally, treating the resulting complex with an ether, and (e) treating the resulting complex with an alcohol. The complex may be recovered and used as a catalyst, for example in hydrogenation reactions.

Tridentate platinum, palladium, and gold complexes of Formulas A-I and A-II and tridentate iridium and rhodium compounds of Formulas B-I, B-II, and B-III suitable for delayed fluorescent and phosphorescent or phosphorescent emitters in display and lighting applications. ##STR00001## ##STR00002##

There is provided a novel optically active bisphosphinomethane useful as a ligand for an asymmetric catalyst, excellent in oxidation resistance in air, and easy in handling. There is also provided a transition metal complex using the optically active bisphosphinoraethane having excellent asymmetric catalytic ability as a ligand. The optically active bisphosphinomethane is represented by the general formula (1), and the transition metal complex has the optically active bisphosphinomethane as a ligand.

##STR00001##

(In the formula, R.sup.1 represents an adamantyl group; R.sup.2 represents a branched alkyl group having 3 or more carbon atoms; and * represents an asymmetric center on a phosphorus atom.)

An organometallic compound represented by Formula 1:
M(L.sub.1).sub.n1(L.sub.2).sub.n2  Formula 1
wherein, in Formula 1, M is a transition metal, L.sub.1 is a ligand represented by Formula 2A, L.sub.2 is a ligand represented by Formula 2B, n1 is 1 or 2, wherein, when n1 is 2, two groups L.sub.1 are identical to or different from each other, n2 is 1 or 2, wherein, when n2 is 2, two group L.sub.2 are identical to or different from each other, the sum of n1 and n2 is 2 or 3, and L.sub.1 and L.sub.2 are different from each other ##STR00001##
wherein X.sub.1, ring CY.sub.1, ring CY.sub.2, ring CY.sub.14, R.sub.1 to R.sub.3, R.sub.11 to R.sub.14, Z.sub.1 to Z.sub.3, a1, a2, a3, b1, and c1 are the same as described in the description, and * and *′ in Formulae 2A and 2B each indicate a binding site to M in Formula 1.

The present invention relates to binuclear metal complexes and electronic devices, in particular organic electroluminescent devices containing said metal complexes of the formula (1): ##STR00001##

Provided are an electroluminescent material and a device thereof. The electroluminescent material is a metal complex having a ligand represented by Formula 1 and can be used as light-emitting materials in electroluminescent devices. These new metal complexes can effectively regulate and control the luminescence wavelength, reduce the drive voltage of electroluminescent devices, greatly improve the current efficiency, power efficiency and EQE of electroluminescent devices, prolong the device lifetime, and provide better device performance. Further provided are an electroluminescent device and a compound composition.

Bisphosphite ligands based on benzopinacol with an open outer unit, and the use thereof in hydroformylation.