Rare-earth organic coordination polymer taking 4,4'-bipyridyl as template, and preparation method and application thereof

A coordination polymer, rare earth organic technology, applied in the direction of organic compound/hydride/coordination complex catalysts, compounds containing elements of Group 3/13 of the periodic table, organic chemistry, etc., can solve the problem of rare earth coordination polymers. Less synthesis and other problems, to achieve the effect of easy large-scale industrial production, high yield and novel structure

Inactive Publication Date: 2011-08-17
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, very little synthesis has been done on rare earth coordination polymers

Method used

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  • Rare-earth organic coordination polymer taking 4,4'-bipyridyl as template, and preparation method and application thereof
  • Rare-earth organic coordination polymer taking 4,4'-bipyridyl as template, and preparation method and application thereof
  • Rare-earth organic coordination polymer taking 4,4'-bipyridyl as template, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] {(bpy)[Pr(ip) 1.5 (H 2 O) 4 ]} n Synthesis

[0050] Pr(NO 3 ) 3 ·6H 2 O (0.5mmol, 218mg), isophthalic acid (0.5mmol, 83mg), 4,4'-bipyridine (0.5mmol, 78mg) were dissolved in 15ml of distilled water, stirred evenly, and the pH of the reaction system was adjusted with triethylamine Value = 7-8, then added to the reaction kettle, heated up, reacted at 120°C for 72 hours, gradually lowered the temperature, cooled to room temperature, filtered, washed with water, dried to obtain blocky green crystals. The resulting crystals were monochromated with graphite molybdenum target MoKα rays on the Rigaku RAXIS-RAPID single crystal X-ray diffractometer of Japan Rigaku Corporation. Diffraction data were collected at 293(2)K in ω-scan mode. The initial structure of the crystal was solved by the direct method using the SHELX-97 program, and then the coordinates of all non-hydrogen atoms were obtained by the difference Fourier synthesis method and the least square method, and a...

Embodiment 2

[0054] {(bpy)[Nd(ip) 1.5 (H 2 O) 4 ]} n Synthesis

[0055] Nd(OH) 3 (0.25mmol, 49mg), isophthalic acid (3.75mmol, 623mg), 4,4'-bipyridine (3.75mmol, 585mg) were dissolved in 25ml of distilled water and 25ml of methanol, stirred evenly, and adjusted the pH of the reaction system with hydrochloric acid Value = 6-7, then added to the reaction kettle, heated up, reacted at 80°C for 240 hours, gradually lowered the temperature, cooled to room temperature, filtered, washed with water, dried to obtain blocky purple crystals. The resulting crystals were monochromated with graphite molybdenum target MoKα rays on the Rigaku RAXIS-RAPID single crystal X-ray diffractometer of Japan Rigaku Corporation. Diffraction data were collected at 293(2)K in ω-scan mode. The initial structure of the crystal was solved by the direct method using the SHELX-97 program, and then the coordinates of all non-hydrogen atoms were obtained by the difference Fourier synthesis method and the least square ...

Embodiment 3

[0059] {(bpy)[Sm(ip) 1.5 (H 2 O) 4 ]} n Synthesis

[0060] SmCl 3 ·6H 2 O (0.5mmol, 182mg), isophthalic acid (2.0mmol, 332mg), 4,4'-bipyridine (1.0mmol, 156mg) were dissolved in 10ml of distilled water and 5ml of ethanol, stirred evenly, and adjusted with sodium hydroxide solution The pH value of the reaction system is 8-9, then added to the reaction kettle, heated up, and reacted at 140°C for 24 hours, then gradually lowered the temperature, cooled to room temperature, filtered, washed with water, and dried to obtain blocky yellow crystals. The resulting crystals were monochromated with graphite molybdenum target MoKα rays on the RigakuRAXIS-RAPID single crystal X-ray diffractometer of Japan Rigaku Corporation. Diffraction data were collected at 293(2K in ω scan mode. The initial structure of the crystal was solved by the direct method using the SHELX-97 program, and then the coordinates of all non-hydrogen atoms were obtained by the difference Fourier synthesis method...

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Abstract

The invention relates to a rare-earth organic coordination polymer, and a preparation method and application thereof. The rare-earth organic coordination polymer has the following chemical formula: {(bpy)[Re(ip)1.5(H2O)4]}n, wherein bpy is 4,4'-bipyridyl, ip is isophthalic acid divalent negative ions, Re is one or more of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, Y and the like,and n is degree of polymerization. A hydro (solvent)-thermal synthesis method is used for preparing the rare-earth organic coordination polymer, is environment-friendly and easy to operate, low in cost and high in yield, and is suitable for large-scale industrial production. The prepared rare-earth organic coordination polymer has the good application prospects in fields of luminescence, catalysis, adsorption, magnetism, ion exchange, high polymer material aids and the like.

Description

technical field [0001] The present invention relates to a rare earth complex material, in particular to a rare earth organic coordination polymer with 4,4'-bipyridine as a template, in particular to a rare earth organic coordination polymer with 4,4'-bipyridine as a template and isophthalic acid dianion A rare earth organic coordination polymer as a ligand and a preparation method thereof. The prepared rare-earth organic coordination polymer has good application prospects in the fields of luminescence, catalysis, adsorption, magnetism, ion exchange, polymer material additives and the like. Background technique [0002] Coordination polymers refer to polymers with periodic infinite structures formed by self-assembly of metals or metal clusters and organic ligands, also known as metal-organic framework materials, inorganic-organic hybrid materials, etc. The infinite structure includes one-dimensional chain, two-dimensional layer and three-dimensional network structure. Diffe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00C09K11/06B01J31/22H01F1/42B01J20/26C08K5/3432
Inventor 江焕峰郑德蔡博伟任颜卫史大斌钱玉英胡寒星
Owner SOUTH CHINA UNIV OF TECH
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