A complex formed by a zinc oxide molecule and a molecule comprising an acidic hydrogen is disclosed. The oxygen atom of the zinc oxide molecule is covalently bound to the acidic hydrogen.

Compounds are synthesized with bicyclic amidinate ligands attached to one or more metal atoms. These compounds are useful for the synthesis of materials containing metals. Examples include pure metals, metal alloys, metal oxides, metal nitrides, metal phosphides, metal sulfides, metal selenides, metal tellurides, metal borides, metal carbides, metal silicides and metal germanides. Techniques for materials synthesis include vapor deposition (chemical vapor deposition and atomic layer deposition), liquid solution methods (sol-gel and precipitation) and solid-state pyrolysis. Copper metal films are formed on heated substrates by the reaction of copper(I) bicyclic amidinate vapor and hydrogen gas, whereas reaction with water vapor produces copper oxide. Silver and gold films were deposited on surfaces by reaction of their respective bicyclic amidinate vapors with hydrogen gas. Reaction of cobalt(II) bis(bicyclic amidinate) vapor, ammonia gas and hydrogen gas deposits cobalt metal films on heated substrates, while reaction with ammonia produces cobalt nitride and reaction with water vapor produces cobalt oxide. Ruthenium metal films are deposited by reaction of ruthenium(II) bis(bicyclic amidinate) or ruthenium(III) tris(bicyclic amidinate) at a heated surface either with or without a co-reactant such as hydrogen gas or ammonia or oxygen. Suitable applications include electrical interconnects in microelectronics and magnetoresistant layers in magnetic information storage devices. Hafnium oxide films are deposited by reaction of hafnium(IV) tetrakis(bicyclic amidinate) with oxygen sources such as water, hydrogen peroxide or ozone. The HfO.sub.2 films have high dielectric constant and low leakage current, suitable for applications as an insulator in microelectronics. The films have very uniform thickness and complete step coverage in narrow holes.

An organometallic compound represented by Formula 1, which is explained in the specification, is provided. A light-emitting device is provided, which 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 the organometallic compound. An electronic apparatus including the light-emitting device is also provided:

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Provided is a light-emitting device including: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a layer including a Pt complex, and the layer has a thickness of greater than 0 Å and less than 10 Å.

Provided in the present invention is a preparation method for a nano organometallic carboxylate which effectively solves the problems of a complex washing process, and cumbersome, dangerous and uneconomical preparation of lye in traditional methods for producing organometallic carboxylates. A new method for preparing high-quality organometallic carboxylates by using a carboxylic acid, caustic soda, a metal oxide or a hydroxide as starting materials, and using ball milling to assist reaction thereof. The present invention not only efficiently utilizes lye, it also obtains high-quality organometallic carboxylates, which overcomes the technical prejudice that the prior art uses calcium chloride, sodium chloride and other salts for poor reaction efficiency. The problem in environmental pollution caused by the washing waste liquid in the existing process is fundamentally solved. At the same time, addition of non-ionic surfactants makes ball milling more efficient and significantly reduces the particle size of the product.

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.

Flow batteries can include a first half-cell containing a first aqueous electrolyte solution. a second half-cell containing a second aqueous electrolyte solution, and a separator disposed between the first half-cell and the second half-cell. The first aqueous electrolyte solution contains a first redox-active material, and the second aqueous electrolyte solution contains a second redox-active material. At least one of the first redox-active material and the second redox-active material is a nitroxide compound or a salt thereof. Particular nitroxide compounds can include a doubly bonded oxygen contained in a ring bearing the nitroxide group, a doubly bonded oxygen appended to a ring bearing the nitroxide group, sulfate or phosphate groups appended to a ring bearing the nitroxide group, various heterocyclic rings bearing the nitroxide group, or acyclic nitroxide compounds.

A process for the preparation of a shaped MOF, the process comprising: providing a first reactant comprising at least one metal in ionic form and a second reactant comprising at least one organic ligand capable of associating with said metal in ionic form, and optionally a solvent; allowing the first and second reactants to react to form a MOF; and forming a shaped body directly from the mixture of step b) using an extruder or continuous kneader; wherein the initial ratio of the at least one metal in ionic form to the at least one organic ligand is controlled such that shaped bodies having a minimum defined crush strength are formed without the use of an external binder or lubricant.

An object of the present invention is to produce a high-quality Metal-Organic Framework in a short time. A method for producing a Metal-Organic Framework according to the present invention includes simultaneously and continuously applying centrifugal force and shear force to a formulation containing a metal ion donor, a multidentate ligand, and a solvent.

Disclosed herein are modified chromium-dpoed zinc gallate (ZGC) nanocubes, which are characterized in respectively having a concave surface that is modified with (3-aminopropyl)triethoxysilane (APTES). The modified ZGC nanocubes produce long lasting luminescence (LLL) that lasts for at least 1.5 hours under X-ray or UV excitation. Also disclosed herein are methods for the preparation of the modified ZGC nanocubes; and methods for imaging an area of interest (e.g., cancer) in a live subject using the modified ZGC nanocubes as an imaging agent.