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Multifunctional zinc/cadmium complex of thiophene-based organic ligand and application of multifunctional zinc/cadmium complex

A technology of organic ligands and cadmium complexes, applied in the direction of cadmium organic compounds, zinc organic compounds, 2/12 group organic compounds without C-metal bonds, etc., to increase rigidity and support capacity, increase sensitivity, reduce di The effect of secondary pollution

Active Publication Date: 2017-03-15
BOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The use of thiophenol-based organic amide ligands with strong hydrophilicity to construct multifunctional zinc / cadmium complex materials not only makes full use of the coordination advantages of the ligands, but also the thiophenol groups can be retained in the complexes. , which lays the foundation for the subsequent fluorescence sensing analysis of metal ions. At present, the multifunctional zinc / cadmium complex materials with thiophenol-based organic ligands that have fluorescence sensing capabilities for metal ions have not been reported.

Method used

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  • Multifunctional zinc/cadmium complex of thiophene-based organic ligand and application of multifunctional zinc/cadmium complex
  • Multifunctional zinc/cadmium complex of thiophene-based organic ligand and application of multifunctional zinc/cadmium complex
  • Multifunctional zinc/cadmium complex of thiophene-based organic ligand and application of multifunctional zinc/cadmium complex

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Example 1 Synthesis of [Zn(L)(1,3-bdc)] 2H 2 O·DMA, where L is N,N'-bis(3-pyridine)thiophene-2,5-dicarboxamide, the structural formula is: 1,3-bdc is isophthalate; DMA is N,N'-dimethylacetamide.

[0047] 0.1mmol Zn(NO 3 ) 2 ·6H 2 O, 0.10 mmol N,N'-bis(3-pyridine)thiophene-2,5-dicarboxamide, 0.1 mmol isophthalic acid, 5 mL DMA, and 1 mL H 2 O was sequentially added to a 25mL beaker, stirred at room temperature for 30min to obtain a clear solution, transferred to a 25mL autoclave, heated to 80°C at a heating rate of 1.25°C / h, kept at a constant temperature for 48h, and cooled at a rate of 1.25°C / h The temperature was lowered to room temperature to obtain colorless blocky crystals, washed twice with deionized water and ethanol alternately, and dried naturally at room temperature to obtain [Zn(L)(1,3-bdc)]·2H 2 O·DMA, the yield is 55%, and its XRD diffraction pattern is as figure 1 As shown, its coordination environment diagram is shown as Figure 6 As shown, its tw...

Embodiment 2

[0048] Example 2 Synthesis of [Zn(L)(1,3-bdc)] 2H 2 O·DMA, where L is N,N'-bis(3-pyridine)thiophene-2,5-dicarboxamide, 1,3-bdc is isophthalate, DMA is N,N'-di Methylacetamide.

[0049] 0.2mmol Zn(NO 3 ) 2 ·6H 2 O, 0.10 mmol N,N'-bis(3-pyridine)thiophene-2,5-dicarboxamide, 0.2 mmol isophthalic acid, 4 mL DMA, and 2 mL H 2 O was sequentially added to a 25mL beaker, stirred at room temperature for 45min to obtain a clear solution, transferred to a 25mL autoclave, heated to 85°C at a heating rate of 2.5°C / h, kept at a constant temperature for 54h, and cooled at a rate of 2.5°C / h The temperature was lowered to room temperature to obtain colorless blocky crystals, washed with deionized water and ethanol three times alternately, and dried naturally at room temperature to obtain [Zn(L)(1,3-bdc)]·2H 2 O·DMA, the yield is 85%, and its XRD diffraction pattern is as follows figure 1 As shown, its coordination environment diagram is shown as Figure 6 As shown, its two-dimensional s...

Embodiment 3

[0050] Example 3 Synthesis of [Zn(L)(1,3-bdc)]·2H 2 O·DMA, where L is N,N'-bis(3-pyridine)thiophene-2,5-dicarboxamide, 1,3-bdc is isophthalate, DMA is N,N'-di Methylacetamide.

[0051] 0.3mmol Zn(NO 3 ) 2 ·6H 2 O, 0.10 mmol N,N'-bis(3-pyridine)thiophene-2,5-dicarboxamide, 0.3 mmol isophthalic acid, 3 mL DMA, and 3 mL H 2 O was sequentially added to a 25mL beaker, stirred at room temperature for 60min to obtain a clear solution, transferred to a 25mL autoclave, heated to 90°C at a heating rate of 5°C / h, kept at a constant temperature for 96h, and cooled at a rate of 5°C / h The temperature was lowered to room temperature to obtain colorless blocky crystals, washed with deionized water and ethanol four times alternately, and dried naturally at room temperature to obtain [Zn(L)(1,3-bdc)]·2H 2 O·DMA, the yield is 65%, and its XRD diffraction pattern is as follows figure 1 As shown, its coordination environment diagram is shown as Figure 6 As shown, its two-dimensional struct...

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Abstract

Provided are a multifunctional zinc / cadmium complex of a thiophene-based organic ligand and application of the multifunctional zinc / cadmium complex. The molecular formula of the complex is [Zn(L)(1,3-bdc)].2H2O.DMA and [Cd(L)(1,3-bdc)].2H2O, and according to the synthesis steps, nitrate, N,N'-dis(3-pyridine)thiophene-2,5-dicarboamide and isophthalic acid are mixed, nitrate is Zn(NO3)2.6H2O or Cd(NO3)2.6H2O and added into a solvent, a mixture is obtained after uniform stirring and poured into a high-pressure reaction still, and a hydrothermal reaction is carried out; blocky crystals are obtained after cooling, washing and airing are carried out, and the multifunctional zinc / cadmium complex of the thiophene-based organic ligand is obtained. The multifunctional zinc / cadmium complex and the application thereof have the advantages that the complex is stable in water and is not dissolved, has good fluorescence sensing behaviors on Fe3+, can be used for recognition of Fe3+, can be efficiently recycled after being used, and does not pollute the environment.

Description

technical field [0001] The invention belongs to the field of synthesis of fluorescence analysis materials, in particular to a multifunctional zinc / cadmium complex of thiophenol-based organic ligands and its application. Background technique [0002] Iron is an indispensable trace element for the human body. It is an important component of hemoglobin, myoglobin and various enzymes. If iron is lacking in the body, it can affect the synthesis of hemoglobin and myoglobin, causing many physiological changes, leading to immune Low energy, mental decline, neurological disorders and other diseases; however, if too much iron is stored in the body, it will be poisoned, and it will be deposited in the liver, pancreas, heart and skin because it cannot be excreted in time, causing hemochromatosis (hemochromatosis) ), abnormal liver function, myocardial injury and diabetes, tumor, osteoporosis, etc. Therefore, the human body should take an appropriate amount of iron, too much or too litt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/06C07F3/08C09K11/06G01N21/64
CPCC07F3/003C09K11/06C09K2211/188G01N21/643G01N2021/6432
Inventor 刘国成于蕙瑄顾佳丽张益嘉张霞李乔敏于海飞林宏艳王祥刘滨秋应俊
Owner BOHAI UNIV
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