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Organic-ligand-based multifunctional zinc complexes and application thereof

A technology of organic ligands and zinc complexes, applied in the field of photocatalysis and fluorescent material synthesis

Active Publication Date: 2015-02-25
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of highly hydrophilic organic ligands to construct multifunctional zinc complex materials with photocatalytic degradation of organic pollutants and fluorescence sensing capabilities has not been reported yet.

Method used

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  • Organic-ligand-based multifunctional zinc complexes and application thereof
  • Organic-ligand-based multifunctional zinc complexes and application thereof
  • Organic-ligand-based multifunctional zinc complexes and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Example 1 Synthesis {[Zn(L 1 )(mip)]·H 2 O} n ,among them, L 1 for N , N '-Bis(3-pyridine)pyridine-2,6-dimethylformamide, the structural formula is: , Mip is 5-methyl isophthalate

[0074] Add 0.2mmol Zn(NO 3 ) 2 ·6H 2 O, 0.10mmol N , N '-Bis(3-pyridine)pyridine-2,6-dimethylamide, 0.2mmol 5-methylisophthalic acid and 5mL H 2 O was added to a 25mL beaker and stirred at room temperature for 10 minutes to obtain a suspension mixture. After adjusting the pH of the suspension mixture to 6.3 with 0.5mol / L NaOH solution, it was transferred to a 25mL autoclave at a temperature of 2.5℃ / h. The heating rate is increased to 100℃, and the temperature is kept for 36h under hydrothermal conditions, and the temperature is reduced to room temperature at a cooling rate of 10℃ / h to obtain colorless lumpy crystals, which are washed twice with deionized water and ethanol alternately, and allowed to dry naturally at room temperature Dry, get {[Zn(L 1 )(mip)]·H 2 O} n , The yield is 55%, and its...

Embodiment 2

[0075] Example 2 Synthesis {[Zn(L 1 )(mip)]·H 2 O} n ,among them, L 1 for N , N '-Bis(3-pyridine)pyridine-2,6-dimethylamide, mip is 5-methyl isophthalate

[0076] Add 0.1mmol Zn(NO 3 ) 2 ·6H 2 O, 0.10mmol N , N '-Bis(3-pyridine)pyridine-2,6-dimethylamide, 0.10mmol 5-methylisophthalic acid and 10mL H 2 O was added to a 25mL beaker in turn, stirred at room temperature for 40 minutes to obtain a suspension mixture. After adjusting the pH of the suspension mixture to 6.7 with 0.5mol / L NaOH solution, it was transferred to a 25mL autoclave at a temperature of 5℃ / h. The heating rate is increased to 120℃, and the temperature is kept for 96h under hydrothermal conditions. The temperature is reduced to room temperature at a cooling rate of 2.5℃ / h to obtain colorless block crystals, which are washed 4 times with deionized water and ethanol alternately, and allowed to dry naturally at room temperature Dry, get {[Zn(L 1 )(mip)]·H 2 O} n , The yield is 76%, and its XRD pattern is as figure 1 A...

Embodiment 3

[0077] Example 3 Synthesis {[Zn(L 1 )(mip)]·H 2 O} n ,among them, L 1 for N , N '-Bis(3-pyridine)pyridine-2,6-dimethylamide, mip is 5-methyl isophthalate

[0078] Add 0.3mmol Zn(NO 3 ) 2 ·6H 2 O, 0.10mmol N , N '-Bis(3-pyridine)pyridine-2,6-dimethylamide, 0.15mmol 5-methylisophthalic acid and 7.5mL H 2 O was added to a 25mL beaker and stirred for 50min at room temperature to obtain a suspension mixture. After adjusting the pH of the suspension mixture to 7.2 with 1mol / L NaOH solution, it was transferred to a 25mL autoclave and heated at 5℃ / h. The rate is increased to 140℃, kept for 48h under hydrothermal conditions, and the temperature is lowered to room temperature at a cooling rate of 5℃ / h to obtain colorless lumpy crystals, which are washed 5 times with deionized water and ethanol alternately, and dried naturally at room temperature , Get {[Zn(L 1 )(mip)]·H 2 O} n , The yield is 60%, and its XRD diffraction pattern is as figure 1 As shown, the coordination environment diagram ...

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Abstract

The invention relates to organic-ligand-based multifunctional zinc complexes and application thereof. The molecular formulae of the complexes are as follows: {[Zn(L1)(mip)].H2O}n, {[Zn2(L1)2(hip)2].H2O}n, {[Zn(L1)(oba)].H2O}n, {[Zn(L1)(chda)].H2O}n, [Zn(L2)(mip)]n, {[Zn(L2)(hip)(H2O)].3H2O}n and [Zn(L2)(oba)]n. The preparation method comprises the following steps: adding deionized water into Zn(NO3)2.6H2O, tripyridine derivative ligand and V-type dicarboxylic acid, regulating the value, and carrying out hydrothermal synthesis to obtain the product. The complexes have the advantages of high affinity for water-soluble pollutants, favorable catalytic degradation effect, low environmental pollution and favorable fluorescence sensing behavior.

Description

technical field [0001] The invention belongs to the field of photocatalysis and fluorescent material synthesis, and in particular relates to a multifunctional zinc complex based on an organic ligand and its application. Background technique [0002] N'N-dimethylacetamide (DMAC) is mainly used as a solvent for synthetic fiber (acrylonitrile) and polyurethane spinning and synthesis of polyamide resin. It is widely used in the synthesis of polymer films, coatings, medicines, and pesticides. It can also be used as a reaction catalyst, electrolytic solvent, paint remover, and various crystalline solvent adducts and complexes. Commonly found in industrial wastewater. DMAC can be absorbed through the respiratory tract, skin and digestive tract and cause serious damage to the eyes, skin, respiratory system and liver. At present, the detection methods for DMAC are cumbersome, easily disturbed by the detection environment, and require strict detection techniques and conditions. ...

Claims

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Application Information

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IPC IPC(8): C07F7/06B01J31/22C02F1/32C09K11/06
Inventor 刘国成林宏艳蔡克迪应俊刘斌秋王秀丽张巨文田爱香王祥陈乃丽
Owner BOHAI UNIV
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