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Cd (II) metallic organic complex and preparation method thereof

A metal-organic and complex technology, applied in the direction of 2/12 organic compounds without C-metal bonds, cadmium organic compounds, organic chemical methods, etc., to achieve the effect of mild reaction conditions, easy access, and good fluorescence characteristics

Inactive Publication Date: 2017-11-24
ZHAOQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are very few reports on Cd(Ⅱ) organometallic complexes based on 2,5-furandicarboxylic acid, which have fluorescence properties and are affected by solvents

Method used

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  • Cd (II) metallic organic complex and preparation method thereof
  • Cd (II) metallic organic complex and preparation method thereof
  • Cd (II) metallic organic complex and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Preparation of Cd(II) metal-organic complexes based on 2,5-furandicarboxylic acid

[0026] The preparation method comprises the following steps:

[0027] (1) Equimolar amounts of Cd(NO 3 ) 2 4H 2 O (0.154g, 0.5mmol) and FDCA (0.078g, 0.5mmol) were added to 12mL DMF solvent, then stirred for 30 minutes;

[0028] (2) Add the substance in step 1 into a polytetrafluoroethylene reactor with a volume of 23mL, keep 130°C for 72 hours at a constant temperature under autogenous pressure, and then cool down to room temperature at a rate of 5°C / h;

[0029] (3) The mixture in step 2 was filtered to collect crystals, washed with absolute ethanol and dried to obtain colorless crystals (yield according to FDC calculation: 62%).

[0030] 2. Identification of Cd(Ⅱ) metal-organic complexes based on 2,5-furandicarboxylic acid

[0031] Through the following elemental analysis, IR spectrum and X-ray single crystal diffraction analysis, the colorless crystal obtained in the above ste...

Embodiment 2

[0042] In this example, the 2,5-furandicarboxylic 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:

[0043] (1) Fluorescence performance test: measure the solid-state fluorescence spectrum of the Cd(II) metal organic complex based on 2,5-furandicarboxylic acid in the range of 300-600 nm at room temperature.

[0044] (2) Experimental results

[0045] The results of solid-state fluorescence spectroscopy are displayed (see Figure 4 ), the Cd(II) metal-organic complex based on 2,5-furandicarboxylic acid of the present invention emits bright blue fluorescence, and the maximum fluorescence emission wavelength at the excitation wavelength of 350nm is 470nm.

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Abstract

The invention relates to a Cd (II) metallic organic complex based on 2,5-furan dicarboxylic acid. The metallic organic complex is a cadmium metallic organic complex with a repetitive unit such as [(Me2NH2)2Cd2(FDC)3(H2O)2.(H20)4], wherein the FDC in the chemical formula [(Me2NH2)2Cd2(FDC)3(H2O)2.(H20)4] is a 2,5-furan dicarboxylic acid ligand with two H being deleted. The Cd (II) metallic organic complex provided by the invention is capable of emitting blue fluorescence; the fluorescent lifetime is 138.1ns; the Cd (II) metallic organic complex can be used for preparing a fluorescent material.

Description

technical field [0001] The invention belongs to the technical field of metal-organic complexes, and in particular relates to a Cd(II) metal-organic complex and a preparation method thereof. Background technique [0002] Metal-organic complexes are metal-organic framework materials with one-dimensional, two-dimensional or three-dimensional structures synthesized by self-assembly of metal ions and organic ligands under certain conditions. As a new type of functional material, metal-organic complexes have the characteristics of high porosity, plastic structure, and uniform pore size. Due to its unique porous structure and easy preparation method, it has potential application value in the fields of fluorescence, magnetism, adsorption and drug loading. [0003] Organic ligands with conjugated electron effects and d 10 Electronic configuration of Zn 2+ and Cd 2+ Metal-organic complexes combined with other metals can emit light, and metal-organic complexes with repeating struct...

Claims

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Application Information

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IPC IPC(8): C07F3/08C09K11/06C08G83/00
CPCC07F3/003C07B2200/13C08G83/008C09K11/06C09K2211/188
Inventor 马德运梁凤兰郭海福廖威林覃亮
Owner ZHAOQING UNIV
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