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Chiral zinc complex secondary structure hollow microsphere and preparation method thereof

A technology of zinc complexes and hollow microspheres, which is applied in the direction of zinc organic compounds, organic compounds/hydrides/coordination complex catalysts, chemical instruments and methods, etc., can solve problems such as limitations, and achieve regular morphology and high ratio Surface area, simple operation effect

Inactive Publication Date: 2011-09-14
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, the materials for synthesizing hollow spheres are mainly concentrated in pure inorganic materials such as zinc oxide, copper oxide, etc., which limit their application

Method used

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  • Chiral zinc complex secondary structure hollow microsphere and preparation method thereof
  • Chiral zinc complex secondary structure hollow microsphere and preparation method thereof
  • Chiral zinc complex secondary structure hollow microsphere and preparation method thereof

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Embodiment

[0021] The present invention uses zinc acetate (Zn(CH 3 COO) 2 ?2H 2 O) and 2,4-tetrahydrothiazole diacid (H 2 L) is a raw material, using water as a solvent, polyvinylpyrrolidone (PVP) as a surfactant, and acetone as a precipitating agent, all of which are commercially available products without any treatment before use. The preparation steps are as follows:

[0022] 1) Add 0.44 g Zn(CH 3 COO) 2 ?2H 2 After O and 11.20 g PVP are mixed, be dispersed in 160.0 g water and make mixed solution, its mass ratio is 1: 25.5: 363.6;

[0023] 2) Add a concentration of 50 mmol / L H 2 O of H 2 Add 40.0 ml of L aqueous solution to the above mixture, stir at room temperature for 2 hours, and stand at 80°C for 6 hours;

[0024] 3) A white precipitate appeared after adding acetone, and the precipitate obtained by centrifugation was washed 10 times with absolute ethanol to obtain a white powder, which was the target product.

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Abstract

The invention discloses a chiral zinc complex secondary structure hollow microsphere. The chemical formula of the microsphere is shown as ([ZnL(H2O)].0.5H2O) infinite, wherein L is 2,4-thiazolidine diacid anion; a zinc complex belongs to a tetragonal system, has a three-dimensional network structure and is formed by assembling ZnNO5 modules; the coordination geometric configuration of zinc ions is a deformed octahedron; and adjacent zinc ions are bridged through carboxyl to constitute a three-dimensional metal organic frame structure. In the preparation method, zinc acetate and H2L are taken as raw materials, water is taken as a solvent, PVP (Polyvinyl Pyrrolidone) is taken as a surfactant and acetone is taken as a precipitant. The invention has the advantages that: the chiral zinc complex secondary structure hollow microsphere represents stronger negative Cotton effect and larger specific surface area and has wide application prospect as a novel functional material; the preparation method is easy to operate and has low cost; the obtained product has a regular shape and high stability; and a new measure is explored for the introduction of a novel material.

Description

technical field [0001] The invention relates to a functional coordination polymer material, in particular to a chiral zinc complex secondary structure hollow microsphere and a preparation method thereof. Background technique [0002] Hollow sphere is a special material whose inner core is composed of air or solvent. Its low density and high specific surface make it have good permeability, adsorption, molecular sieving ability and optical performance. The hollow part of the material can accommodate a large number of guest molecules or large-size guests, so that the hollow microspheres can be used as a new type of functional material in catalysis, chromatography, and drug sustained-release systems. At present, most hollow microspheres are based on inorganic substances such as Cu 2 O, and metal-organic complexes show unique properties such as chirality and magnetism due to the combination of organic and inorganic components. [0003] Micron hollow spheres have characteristics...

Claims

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Application Information

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IPC IPC(8): C07F3/06B01J31/22B01J35/10
Inventor 程鹏殷艳艳
Owner NANKAI UNIV
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