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.

Therapeutically-effective amounts of novel analogs or derivatives of alkyl fatty acids, such as but not limited to lipoic acid, and pharmaceutical formulations comprising such analogs or derivatives and pharmaceutically-acceptable carriers therefor, are useful for the treatment, prevention, imaging, and/or diagnosis of medical disorders.

Pulverulent compositions of a complex between an acid and a metal form an at least partially spherical particle. The acid is selected from 2-hydroxy-4-methyl-thiobutanoic acid (HMTBA), methionine, aspartic acid, the alginic acids, the pectinic acids, and the corresponding anions, in particular 2-hydroxy-4-methyl-thiobutanoate, methioninate, aspartate, the alginates and the pectinates. The metal is divalent or trivalent. The particle has an amorphous fraction the mass of which represents at least 50% of the total mass of the particle. The particle is substantially devoid of uncomplexed acid or anion and of uncomplexed metal or metal cation.

Pulverulent compositions of a complex between an acid and a metal form an at least partially spherical particle. The acid is selected from 2-hydroxy-4-methyl-thiobutanoic acid (HMTBA), methionine, aspartic acid, the alginic acids, the pectinic acids, and the corresponding anions, in particular 2-hydroxy-4-methyl-thiobutanoate, methioninate, aspartate, the alginates and the pectinates. The metal is divalent or trivalent. The particle has an amorphous fraction the mass of which represents at least 50% of the total mass of the particle. The particle is substantially devoid of uncomplexed acid or anion and of uncomplexed metal or metal cation.

A process for the preparation of a metal-organic compound, said metal-organic compound comprising at least one metal ion and at least one organic ligand, wherein said organic ligand is capable of associating with said metal ion, comprising at least the steps of; providing a first reactant comprising at least one metal in ionic form; providing a second reactant comprising at least one organic ligand capable of associating with said metal in ionic form; and admixing said first and second reactants under conditions of prolonged and sustained pressure and shear sufficient to synthesize said metal-organic compound.

The compound represented by the following general formula is useful as a light emitting material. Ar.sup.1 represents an arylene group, Ar.sup.2 and Ar.sup.3 represent an aryl group, and R.sup.1 to R.sup.8 represent a hydrogen atom or a substituent, provided that at least one of R.sup.1 to R.sup.8 represents a diarylamino group. ##STR00001##

Homochiral metal organic framework (MOF) selected from a group consisting of (S.sub.p)-P5A-MOF-1 and (R.sub.p)-P5A-MOF-1 is provided. The homochiral MOFs are prepared from pure enantiomer struts of formula (I): ##STR00001##
The homochiral MOFs are suitable for separation of enantiomers from racemic mixtures.

The present patent application relates to new metal complexes having at least one N-aminoguanidinate ligand. The patent application further relates to the preparation of the new metal complexes and also to their use. The new metal complexes are especially suitable as precursors for the preparation of functional layers by means of gas-phase thin-film processes such as CVD, MO-CVD, MOVPE and ALD. Additionally, they are also suitable as catalysts for olefin hydroamination and for olefm polymerization.

##STR00001##

The present invention provides carbohydrate-based surfactants and methods for producing the same. Methods for producing carbohydrate-based surfactants include using a glycosylation promoter to link a carbohydrate or its derivative to a hydrophobic compound.

The present disclosure discloses a method for preparing a metal-organic framework filter comprising the steps of bringing metal sources into contact with organic ligands and forming a metal-organic framework filter on substrates by a hot-pressing method. By the method of the present disclosure, a large amount of metal-organic framework filters with high purity can be obtained quickly and easily, thereby realizing industrialized production and application and the method has such advantages as low cost, simple operation, rapid production, batch product and high purity.