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Metal-organic coordination polymer containing neodymium and copper and preparation method

A coordination polymer and organic technology, applied in the field of metal-organic coordination polymers and preparation, can solve the problem of no neodymium chloride hexahydrate and the like, and achieve the effects of easy preparation and good thermal stability

Inactive Publication Date: 2015-02-25
BEIJING UNIV OF CHEM TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Prior to the work on this patent application, there were no patent literature or scientific papers on neodymium chloride hexahydrate, copper bromide, 2,5-pyridine-dicarboxylic acid reporting in this regard

Method used

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  • Metal-organic coordination polymer containing neodymium and copper and preparation method
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  • Metal-organic coordination polymer containing neodymium and copper and preparation method

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Embodiment 1

[0019] Complex crystals were synthesized by a hydrothermal method (all substances are in parts by mass, here each part by mass is 0.01 g). Add 3 parts of neodymium chloride, 2 parts of copper bromide, and 5 parts of 2,5-pyridinedicarboxylic acid into a stainless steel reaction kettle lined with polytetrafluoroethylene with a volume of 25 mL filled with 120 parts of deionized water, and adjust the pH Adjust to 6, then react at constant temperature at 160°C for 72h, and cool down to room temperature at a constant rate for 48h to obtain blue-purple granular crystals.

[0020] The dark blue-purple granular crystals with a size of 0.15×0.08×0.05mm were selected for X-ray diffraction experiments. At room temperature (293K), with a Smart Apex single crystal X-ray diffractometer, MoKα rays As the light source, the diffraction data is collected by ω-scanning method, and its structural unit is shown in figure 1 , single crystal X-ray crystal structure analysis results of the complex ...

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Abstract

The invention discloses a metal-organic coordination polymer containing neodymium and copper and a preparation method, and belongs to the technical field of metal-organic coordination polymer crystal. The structural unit of the molecular formula of the polymer is [NdCu1.5(pydc)3(H2O)5].7H2O, and the polymer is synthesized by adopting a solvothermal method; 5 mass parts of 2,5-pyridine-dicarboxylic acid, 3 mass parts of neodymium chloride hexahydrate and 2 mass parts of copper bromide are used as raw materials, and 100 to 120 mass parts of deionized water is used as a solvent; and the method comprises the following steps of: regulating the pH to 6-7, and putting into a stainless steel autoclave, wherein the volume ratio of the solution to the autoclave is 6:25; and reacting for 72 to 120 hours at the temperature of between 140 and 170 DEG C, slowly cooling to room temperature within 24 to 48 hours, and thus obtaining the metal-organic coordination polymer crystal. The polymer is high in thermal stability, and has semiconductor property..

Description

technical field [0001] The invention belongs to the technical field of metal-organic coordination polymer crystals, and specifically relates to a metal-organic coordination polymer and a preparation method thereof. Background technique: [0002] Metal-organic coordination polymers are coordination polymers with an infinite network structure formed by central metal ions and organic ligands through van der Waals forces or coordination bonds. They have the dual characteristics of polymer composites and complexes, but they are also General polymer materials and inorganic complexes are different. In recent years, due to the strong expansion of metal-organic coordination polymers in functional materials, and the potential application prospects in liquid crystal materials, optical fibers, electroluminescent materials, etc., more and more people have begun to pay attention Metal-organic coordination polymers. Therefore, research on the design, synthesis, structure and application ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F19/00C07F5/00C07F1/08
Inventor 张丽丹刘静韩春英李增和
Owner BEIJING UNIV OF CHEM TECH
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