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852results about "Group 3/13 organic compounds without C-metal linkages" patented technology

Micro-channel chemical preparation method of porous metal-organic framework material

The purpose of the invention is providing a micro-channel chemical preparation method of porous metal-organic framework material. The method comprises the following steps: respectively injecting a liquid medium containing one or more organic compounds with at least one unidentate ligand, a liquid medium containing one or more metal ions, a liquid medium containing a deprotonation assistant and an inert gas into a micro-channel reactor through different inlets, carrying out a coordination reaction on the above obtained mixed material liquid in the micro-channel at a certain temperature under a certain pressure to form a coordination compound, crystallizing, filtering, washing, and drying to prepare the porous metal-organic framework material, wherein the micro-channel reactor has at least two inlets and one outlet; the addition amount of the deprotonation assistant is 0-50% of the mole number of all metal ions; a ratio of the volume velocity of inert gas added into the micro-channel reactor to the bulk volume velocity of the liquid phase is 0-100:1; and the crystallization process can be omitted. The method has the characteristics of simple and safe operation, high efficiency, large throughput and easy amplification.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Rare earth organic framework material for fluorescence detection of trace water and preparation method of rare earth organic framework material

The invention discloses a rare earth organic framework material for fluorescence detection of trace water and a preparation method of the rare earth organic framework material. The rare earth organic framework material is an orderly microporous crystalline material, and the general structural formula of the material is [(CH3)2NH2]2[Ln6(mu3-OH)8(L-NH2)6(H2O)6]*(G)7, wherein Ln in the formula is Eu<3+>, Tb<3+> or Gd<3+>, L-NH2 is a chainlike phthalic acid organic ligand with an amino group function group and G represents a solvent in pores. The rare earth organic framework material is synthesized with a solvothermal method, the synthesis method adopts a simple process, the condition is mild, the yield is higher, and the product stability is good. The rare earth organic framework material has the properties of characteristic emission of rare earth and fluorescence of the ligand, the specific value of two emission peaks and the content of water in the solvent are in a better linear relation, and ratio type detection of trace water can be realized; the light color remarkably changes with the change of the water content, and the material can be used for colorimetric type detection of trace water. The sensitivity of a probe is high, the response speed is high, the detection limit is low, and the material can be recycled and is expected to be used practically in fields of detection and monitoring of trace water.
Owner:ZHEJIANG UNIV

Organic/Inorganic Composite

The present invention provides an organic / inorganic composite containing a rare earth metal or / and Period IV transition metal in which the aforementioned rare earth metal or / and Period IV transition metal is doped at a high concentration, and control of quenching and optical transparency are assured thereby; and an optical amplifier, a light control optical element, and luminescent device utilizing the same. The organic / inorganic composite containing a rare earth metal or / and Period IV transition metal is one in which at least one species of rare earth metal or / and Period IV transition metal is dispersed in an organic polymer, with the aforementioned composite containing an optically transparent organic polymer and an inorganic dispersion phase comprising: (1) a rare earth metal and (2) another element coordinated thereto via an oxygen atom(s). The inorganic dispersion phase in which another metal coordinates to rare earth metal or / and Period IV transition metal via an oxygen atom(s) preferably has an average particle size ranging from 0.1 to 1000 nm. Preferably, the ratio of rare earth metal or / and Period IV transition metal when mathematically converted to solid content is 90 mass % or less of the total mass of the organic polymer and the rare earth metal dispersion phase.
Owner:KRI INC
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