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Cadmium (II) metal organic complex based on 5-amino isophthalic acid influenced by solvent and preparation method thereof

An aminoisophthalic acid, organic complex technology, applied in the direction of cadmium organic compounds, 2/12 group organic compounds without C-metal bonds, organic chemical methods, etc., to achieve good fluorescence characteristics, easy to obtain, high purity. Effect

Inactive Publication Date: 2017-03-08
ZHAOQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are very few reports on 5-aminoisophthalic acid-based Cd(II) metal-organic complexes with fluorescent properties and solvent-affected properties

Method used

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  • Cadmium (II) metal organic complex based on 5-amino isophthalic acid influenced by solvent and preparation method thereof
  • Cadmium (II) metal organic complex based on 5-amino isophthalic acid influenced by solvent and preparation method thereof
  • Cadmium (II) metal organic complex based on 5-amino isophthalic acid influenced by solvent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Preparation of Cd(II) metal-organic complexes based on 5-aminoisophthalic acid

[0028] The preparation method comprises the following steps:

[0029] (1) Mix solvent water and DMF (analytical pure) according to the ratio of 1:1 to obtain a mixed solvent;

[0030](2) Equimolar amounts of Cd(NO 3 ) 2 4H 2 O (0.092g, 0.3mmol) and NH 2 -H 2 BDC (0.054g, 0.3mmol) was added to 10mL of the mixed solvent in step 1, and then stirred for 30 minutes;

[0031] (3) Add the substance in step 2 into a 23mL polytetrafluoroethylene reactor, keep it at 140°C for 72 hours under autogenous pressure, and then lower it to room temperature at a rate of 5°C / h;

[0032] (4) The mixture in step 3 was filtered, the crystals were collected, washed with absolute ethanol and dried to obtain colorless crystals (according to NH 2 -H 2 BDC calculated yield: 55%).

[0033] 2. Identification of Cd(II) metal-organic complexes based on 5-aminoisophthalic acid

[0034] Through the following el...

Embodiment 2

[0045] Example 2: Research on the Fluorescent Properties of Cd(II) Metal-Organic Complexes

[0046] In this example, the 5-aminoisophthalic acid-based Cd(II) metal-organic complex obtained in Example 1 was used to study the fluorescence properties. The specific research methods are as follows:

[0047] (1) Three-dimensional fluorescence performance test: The three-dimensional solid-state fluorescence spectrum of the Cd(II) metal organic complex based on 5-aminoisophthalic acid in the range of 200-600 nm was measured at room temperature.

[0048] (2) Experimental results

[0049] The results of three-dimensional solid-state fluorescence spectroscopy show (such as Figure 4 ), the Cd(II) metal-organic complex based on 5-aminoisophthalic acid of the present invention emits bright blue fluorescence, and the maximum fluorescence emission wavelength at the excitation wavelength of 220nm is 440nm.

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Abstract

The invention relates to a cadmium (II) metal organic complex based on 5-amino isophthalic acid influenced by solvent and preparation method thereof. The metal organic complex is a cadmium metal organic complex with repeated unit of [(Me2NH2)2Cd2(NH2-BDC)3(H2O)].DMF.8H2O. The NH2-BDC in the chemical formula [(Me2NH2)2Cd2(NH2-BDC)3(H2O)].DMF.8H2O is 5-amino isophthalic acid ligand. The DMF is N, N-dimethylformamide. The Me2NH2 is produced by the degeneration of solvent DMF. The Cd(II) metal organic complex emits blue fluorescent light, and can be used as fluorescent material.

Description

technical field [0001] The invention relates to a metal-organic complex, in particular to a solvent-affected cadmium (II) metal-organic complex based on 5-aminoisophthalic acid and a preparation method thereof. Background technique [0002] Metal-organic complexes are a new type of functional material, which are synthesized by self-assembly of metal ions and organic ligands under certain conditions. Due to its unique skeleton structure and controllable pore size, it has extremely broad application space in gas adsorption, photoelectric materials, magnetic materials, drug loading, and catalysis. [0003] Metal-organic complexes can affect the luminescent properties of the complexes by changing the metal coordination, which has important application value in the preparation of new luminescent materials [1-4] . The luminescence mechanism of metal-organic complexes can be divided into: metal center luminescence, organic ligand luminescence, electronic transition luminescence (...

Claims

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Application Information

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IPC IPC(8): C07F3/08C09K11/06
CPCC07B2200/13C07F3/003C09K11/06C09K2211/188
Inventor 郭海福马德运覃亮雷佳眉谢佳敏朱致卫
Owner ZHAOQING UNIV
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