The present invention provides novel metal complexes, methods of making, and methods of using the same.

A compound that is useful for forming a metal by reaction with a reducing agent is described by formula (I): ##STR00001##
wherein M is a metal selected from Groups 2 through 12 of the Periodic Table; and R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independently H or C.sub.1-C.sub.8 alkyl.

The invention relates to a phthalocyanine compound, which has a structure as represented by Formula I, wherein A represents a transition metal or a rare earth metal; R1 represents a phenyl group, a naphthyl group, or a C.sub.4-C.sub.16 n-alkyl group. The aromatic phthalocyanine compound having the structure of Formula I provided in the invention contains a transition metal or a rare earth metal, and introduces a peripheral substituent into a linearly extended 7c-conjugated system. It is relatively stabler at 400° C. or less and will be easily evaporated in vacuum to form a uniform thin film, and has good thermal stability, high chemical stability, and high mobility. The organic semiconductor device has the features of relatively fast on-off speed, relatively high on-off ratio, and strong reliability.

##STR00001##

A method for forming a metal-organic framework comprising a step of providing a substrate; a single step of forming a single layer of metal oxide formed on the substrate said layer of metal oxide being transformed in whole or in part into metal-organic framework by successive implementation of a plurality of reaction cycles; each reaction cycle of the plurality of reaction cycles comprising: a treatment step with at least one ligand; a treatment step with at least one additive; the reaction cycles being implemented at least twice so as to form the metal-organic framework on the substrate.

The present invention describes an electrochemical system (1) to electrochemically reduce carbon monoxide (CO) into liquid methanol and gaseous H.sub.2, comprising an electrochemical cell with an anodic compartment with an anode (2) with a current collector (2A), at least a catalyst to electrochemically oxidize H.sub.2O, and a cathodic compartment with a cathodic electrolyte solution comprising the solvent (3), and a cathodic supporting electrolyte, the solvent (3) being water at basic pH of between 10.5 and 13.5, the reagent CO; a cathode (4) which comprises, on a current collector (4A) which is electrochemically inert, at least a cobalt molecular catalyst (4B) to electrochemically reduce CO into liquid methanol and the gas H.sub.2, a power supply (5) providing the energy necessary to trigger the electrochemical reactions involving the reagent.

An organometallic compound, which enables thin-film deposition through vapor deposition, and particularly to a Co or Fe precursor, which is suitable for use in atomic layer deposition or chemical vapor deposition, and a method of preparing the same.

Compounds can be used as catalysts, particularly in ring-opening polymerization reactions, including ring-opening co-polymerization (ROCOP) reactions, or in isocyanate trimerization reactions. The compounds have the formula L-M-X.sub.n, where L is a pyridyl-bis(iminophenolate) ligand, M is a metal ion, X is a co-ligand to balance the charge of the compound, and n is an integer from 0 to 7. The compounds can be prepared by base condensation of a pyridyl-diamine compound with an aldehyde or ketone.

A method of making a cobalt compound for feed supplements includes the steps of dissolving cobalt acetate tetrahydrate in water to form a mixture, adding an acid to the mixture, sonicating the mixture for a selected time, removing acetic acid from the mixture, and separating crystals of the cobalt compound from the mixture.

A composition includes: a metal compound including a ligand; and a solvent. The ligand is derived from a compound represented by formula (1). L represents an oxygen atom or a single bond; R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms; R.sup.2 and R.sup.3 each independently represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, or R.sup.2 and R.sup.3 bind with each other and represent an alicyclic structure having 3 to 20 ring atoms together with the carbon atom to which R.sup.2 and R.sup.3 bond, or le and either R.sup.2 or R.sup.3 bind with each other and represent a lactone ring structure having 4 to 20 ring atoms or a cyclic ketone structure having 4 to 20 ring atoms together with the atom chain to which le and either R.sup.2 or R.sup.3 bond.

##STR00001##

The present invention relates to a cobalt-nitrosyl complex having photocleavable ligands. The cobalt-nitrosyl complex provided in one aspect of the present invention is adept in the delivery of NO, with exquisite temporal control using light, without gene editing. In addition, the complex provided in one aspect of the present invention is excellent in biocompatibility because it is chemically stable, non-toxic at cell level, and non-perturbative in cellular environments.