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##

A homogeneous catalytic reaction method and a catalyst for isomerization and hydroformylation of long-chain internal olefins are disclosed. A rhodium-ruthenium metal complex is used as a catalyst; and the ligands are tetradentate phosphine ligands. By means of the catalytic system, homogeneous internal olefin isomerization aid hydroformylation can be performed under a certain temperature and pressure to obtain aldehyde products having high normal to iso ratios. The present invention is applicable to not only long-chain internal olefins (C8) but also internal olefins having a carbon number less than 8.

Metal complexes such as those of formula (I) are contemplated by the present invention. The metal complexes may be used in catalytic reactions as a catalyst. The catalytic reaction may be an autotransfer process, for example hydrogen borrowing. Improved catalytic activity has been observed with certain metal complexes of the invention. ##STR00001##

Catalysts prepared from abundant, cost effective metals, such as cobalt, nickel, chromium, manganese, iron, and copper, and containing one or more neutrally charged ligands (e.g., monodentate, bidentate, and/or polydentate ligands) and methods of making and using thereof are described herein. Exemplary ligands include, but are not limited to, phosphine ligands, nitrogen-based ligands, sulfur-based ligands, and/or arsenic-based ligands. In some embodiments, the catalyst is a cobalt-based catalyst or a nickel-based catalyst. The catalysts described herein are stable and active at neutral pH and in a wide range of buffers that are both weak and strong proton acceptors. While its activity is slightly lower than state of the art cobalt-based water oxidation catalysts under some conditions, it is capable of sustaining electrolysis at high applied potentials without a significant degradation in catalytic current. This enhanced robustness gives it an advantage in industrial and large-scale water electrolysis schemes.

A composition is provided in which a phosphorescent compound represented by formula (1) and a host material are blended with each other. The amount of chlorine atoms contained as impurities in the phosphorescent compound is 3.5 ppm by mass or less with respect to the total amount of solid contents blended in the composition.

##STR00001##

In Formula (1), M.sup.1 represents an iridium atom; n.sup.1 represents an integer of 1 or more, n.sup.2 represents an integer of 0 or more, n.sup.1+n.sup.2 is 2 or 3; E.sup.1 and E.sup.2 represent a carbon atom or a nitrogen atom; R.sup.1 ring represents a 5-membered aromatic heterocyclic ring and R.sup.2 ring represents an aromatic hydrocarbon ring; A.sup.1-G.sup.1-A.sup.2 represents an anionic bidentate ligand; A.sup.1 and A.sup.2 represent a nitrogen atom; and G.sup.1 represents a single bond.

An organometallic compound represented by Formula 1:

M(L.sub.1).sub.n1(L.sub.2).sub.n2Formula 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.

Catalytic processes employing rhodium complexes are disclosed, wherein the catalytic processes involve an initial step of activation of a CH bond present within a hydrocarbon substrate. In contrast to prior art techniques, the catalytic processes of the invention can be conducted at low temperatures, and the catalytic compounds are themselves highly recyclable. Also disclosed are the rhodium complexes themselves and processes of making them.

Claimed is a method involving dehydrogenative silylation of aromatic compounds under Rh-catalysis to give an arylalkoxysilane. The method includes the steps of: 1) combining conditions appropriate to form the arylalkoxysilane, starting materials including A) an alkoxysilane having at least one silicon bonded hydrogen atom per molecule; (I) B) an aromatic compound having a carbon-hydrogen bond; and C) a rhodium bisphospholane catalyst. Additional starting materials such as D) a hydrogen acceptor and/or E) a solvent may be added during step 1). The method may further include 2) recovering the arylalkoxysilane. In a preferred embodiment the Rhodium bisphospholane catalyst is of type (II).

##STR00001##

Composition for use as catalyst in hydrosilylations, comprising at least one platinum compound selected from the group consisting of Pt[(Me.sub.2SiCHCH.sub.2).sub.2O].sub.2 and Pt.sub.2[(Me.sub.2SiCHCH.sub.2).sub.2O].sub.3 and at least one rhodium compound selected from the group consisting of Rh(acac)(CO).sub.2, Rh.sub.2(CO).sub.4Cl.sub.2, [Rh(cod)Cl].sub.2, Rh(acac)(cod), RhH(CO)(PPh.sub.3).sub.3, Rh(CO)(PPh.sub.3)(acac), RhCl(CO)(PPh.sub.3).sub.2, and Rh-2-ethylhexanoate at a molar ratio of Pt/Rh in the range of 0.1 to 100.

This method is for producing a transition metal complex represented by formula (2), the method comprising reacting a compound containing a transition metal selected from V, Cr, Mo, W, Fe, Ru, Co, Rh, Ni, Pd, and Pt with an isocyanide compound represented by formula (1) in the presence of an alkali metal supported by a solid substance which is insoluble in an organic solvent. This production method can be used to easily and efficiently produce a transition metal complex that includes a predetermined transition metal having an oxidation number of 0 and that has the same or different isocyanide compounds, without using a compound harmful to the human body. (1): (CN).sub.xR.sup.1 {R.sup.1 represents a mono- to tri-valent organic group having 1-30 carbon atoms, and x represents an integer of 1-3}. (2): M.sup.1.sub.a(L).sub.b {M.sup.1 represents V, Cr, Mo, W, Fe, Ru, Co, Rh, Ni, Pd, or Pt, and is a zero-valent transition metal, L represents an isocyanide compound represented by formula (1), M.sup.1 and L may be the same or different from each other, a represents an integer of 1-8, and b represents an integer of 2-12}.