Synthesis method for constructing tetranuclear copper cluster compound through polydentate Schiff base ligand

A synthesis method and technology of multidentate ligands, applied in copper organic compounds, organic compounds/hydrides/coordination complex catalysts, chemical instruments and methods, etc., can solve the problem of high cost, unsuitable for industrial production and harsh reaction conditions and other problems, to achieve the effects of simple preparation conditions, overcoming the inability to recycle, important economic and social benefits

Inactive Publication Date: 2021-06-04
TAIYUAN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the design and synthesis of transition metal complex catalysts have become the key, but the existing catalyst preparation technologies are costly, harsh reaction conditions, not suitable for industrial production, it is necessary to find new catalyst preparation methods to meet actual needs

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  • Synthesis method for constructing tetranuclear copper cluster compound through polydentate Schiff base ligand

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Embodiment 1

[0019] Embodiment 1, as figure 1 As shown, this embodiment discloses a synthetic method for constructing tetranuclear copper clusters with multidentate Schiff base ligands, comprising the following steps:

[0020] S1. Dissolve 0.05 mmol Schiff base ligand (HL) in 2 mL of dichloromethane, and then add 15 mL of methanol until the Schiff base ligand is completely dissolved to obtain a mixed solution;

[0021] S2, then 0.05mmolCu(NO 3 )·3H 2 O was dissolved in the mixed solution, and stirred at room temperature for 2h on a magnetic stirrer to obtain a reaction solution;

[0022] S3. After filtering the reaction solution to obtain a green solution, place it at room temperature and volatilize naturally in the air. After 5 days, filter to obtain a dark green crystal suitable for single crystal diffraction, which is a tetranuclear copper cluster compound.

Embodiment 2

[0023] Embodiment 2, as figure 1 As shown, this embodiment discloses a synthetic method for constructing tetranuclear copper clusters with multidentate Schiff base ligands, comprising the following steps:

[0024] S1. Dissolve 0.05 mmol Schiff base ligand (HL) in 2 mL of dichloromethane, and then add 15 mL of methanol until the Schiff base ligand is completely dissolved to obtain a mixed solution;

[0025] S2, then 0.05mmolCu(NO 3 )·3H 2 O was dissolved in the mixed solution, and stirred at room temperature for 3h on a magnetic stirrer to obtain a reaction solution;

[0026] S3. After filtering the reaction solution to obtain a green solution, place it at room temperature and volatilize naturally in the air. After 7 days, filter to obtain a dark green crystal suitable for single crystal diffraction, which is a tetranuclear copper cluster compound.

Embodiment 3

[0027] Embodiment 3, as figure 1 As shown, this embodiment discloses a synthetic method for constructing tetranuclear copper clusters with multidentate Schiff base ligands, comprising the following steps:

[0028] S1. Dissolve 0.05 mmol Schiff base ligand (HL) in 2 mL of dichloromethane, and then add 15 mL of methanol until the Schiff base ligand is completely dissolved to obtain a mixed solution;

[0029] S2, then 0.05mmolCu(NO 3 )·3H 2 O was dissolved in the mixed solution, and stirred at room temperature for 5h on a magnetic stirrer to obtain a reaction solution;

[0030] S3. After filtering the reaction solution to obtain a green solution, place it at room temperature and volatilize naturally in the air. After 8 days, filter to obtain a dark green crystal suitable for single crystal diffraction, which is a tetranuclear copper cluster compound.

[0031] The present invention adopts Cu(NO 3 )·3H 2 O reacts with multidentate ligands, methanol, and dichloromethane to prep...

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Abstract

The invention discloses a synthesis method for constructing a tetranuclear copper cluster compound through a polydentate Schiff base ligand. The method comprises the following steps: S1, adding the polydentate ligand as a solute into a solvent, and uniformly stirring to form a mixed solution; S2, adding Cu (NO3). 3H2O into the mixed solution, and placing the mixed solution on a magnetic stirrer for stirring for 2-5 hours at the room temperature to obtain a reaction solution; and S3, after the reaction solution is filtered, placing the reaction solution at the room temperature for natural volatilization, and after 5-8 days, filtering the reaction solution again to obtain the tetranuclear copper cluster compound. The copper cluster compound prepared by the method has the beneficial properties of unique structure, active metal sites and the like, and meanwhile, the defect that a homogeneous catalyst cannot be recycled is overcome; and moreover, the preparation conditions are simple, the preparation cost is low, industrial production can be carried out, meanwhile, the requirement for catalyzing CO2 to carry out curing reaction can be met, and important economic benefits and social benefits are achieved.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to a synthesis method for constructing tetranuclear copper clusters with multidentate Schiff base ligands. Background technique [0002] The disadvantages of traditional catalysts, such as high cost, low efficiency, short service life, and poor recyclability, limit their practical industrial applications. In recent years, with the development of coordination chemistry, it has been found that carbon dioxide can be catalytically activated by metal complexes and converted into organic compounds. Therefore, the design and synthesis of transition metal complex catalysts have become the key. However, the existing catalyst preparation technologies are costly and harsh, and are not suitable for industrial production. It is necessary to find new catalyst preparation methods to meet actual needs. Contents of the invention [0003] The object of the present invention is to address the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F1/08B01J31/22
CPCC07F1/005B01J31/1815B01J2531/0252B01J2531/16Y02P20/584
Inventor 关晓芬王文敏赵浩钧
Owner TAIYUAN NORMAL UNIV
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