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Binuclear nickel coordination compound and preparation method thereof

A technology of nickel complexes and complexes, applied in the field of material chemistry, can solve the problems of large amount of oxidant, difficulty in separation and purification, pollution, etc.

Active Publication Date: 2017-10-10
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the current research level, there are problems such as large amount of oxidizing agent, difficult separation and purification, and serious pollution in the method used to prepare benzil.

Method used

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  • Binuclear nickel coordination compound and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0021] Weigh Ni(Ac) 2 4H 2 O (0.1mmol, 0.0249g), add water 4mL, add ethanol 4mL, heat, stir to obtain solution A; weigh 4,4'-bipyridine dihydrate (0.1mmol, 0.0192g), add ethanol 4mL, heat , stirred to obtain solution B; weigh 5-nitroorotate potassium monohydrate (0.1mmol, 0.0257g), add distilled water 4mL, heat, stir to obtain solution C; mix the above solution B and solution C to obtain B+C mixed solution; put solution A at the bottom of a 25mL test tube, then place 5mL of ethanol on top of solution A, place B+C mixed solution on top of ethanol, let it stand at room temperature for 5 days, and get green blocky crystals ; Take out the green blocky crystal and let it dry naturally to obtain the nickel complex.

Embodiment 2

[0023] Weigh Ni(Ac) 2 4H 2 O (0.1mmol, 0.0249g), add 2mL of water, add 2mL of ethanol, heat and stir to obtain solution A; weigh 4,4'-bipyridine dihydrate (0.1mmol, 0.0192g), add 2mL of ethanol, heat , stirred to obtain solution B; weigh 5-nitroorotate potassium monohydrate (0.1mmol, 0.0257g), add 2mL of distilled water, heat and stir to obtain solution C; mix the above solution B and solution C to obtain B+C mixed solution; put solution A at the bottom of a 25mL test tube, then place 5mL of ethanol on top of solution A, place B+C mixed solution on top of ethanol, and let stand at room temperature for 3 days to obtain green blocky crystals ; Take out the green blocky crystal and let it dry naturally to obtain the nickel complex.

Embodiment 3

[0025] Weigh Ni(Ac) 2 4H 2 O (0.1mmol, 0.0249g), add 2mL of water, add 4mL of ethanol, heat and stir to obtain solution A; weigh 4,4'-bipyridine dihydrate (0.1mmol, 0.0192g), add 4mL of ethanol, heat , stirred to obtain solution B; weigh 5-nitroorotate potassium monohydrate (0.1mmol, 0.0257g), add distilled water 4mL, heat, stir to obtain solution C; mix the above solution B and solution C to obtain B+C mixed solution; put solution A at the bottom of a 25mL test tube, then place 5mL of ethanol on top of solution A, place B+C mixed solution on top of ethanol, let it stand at room temperature for 4 days, and get green blocky crystals ; Take out the green blocky crystal and let it dry naturally to obtain the nickel complex.

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Abstract

The invention discloses a binuclear nickel coordination compound and a preparation method thereof. The nickel coordination compound has an accurate space structure. The structure unit is [Ni2(C5HN3O6)2(bpy)(H2O)6]4H2O(bpy=4,4'-dipyridyl), the chemical formula is Ni2C20H30N8O22, the crystal system is the triclinic system, the space group is P-1, and the lattice parameters are as shown in the specification, wherein Alpha=109.695 degrees, Beta=92.130 degrees, and Gamma=96.161 degrees, and the nickel ion is the octahedral geometrical configuration of hexa-coordination. The preparation method for the binuclear nickel coordination compound comprises the following steps: executing the self-assembly reaction to 5-nitryl orotic acid potassium monohydrate, 4,4'-dipyridyl ligand and the nickel ions with the electrochemical activity through a hierarchy diffusion method, and preparing the binuclear nickel coordination compound. The operation of the preparation method is simple, the cost is cheap, and the method is suitable for the large-scale production. The obtained binuclear nickel coordination compound can be used as a catalyst material for catalytic-oxidating benzoin to prepare benzil, and has the potential application prospect.

Description

technical field [0001] The invention belongs to the field of material chemistry, and in particular relates to a binuclear nickel complex and a preparation method thereof. Background technique [0002] Transition metal cations such as Co 2+ 、Ni 2+ 、Cu 2+ Such complexes have unfilled d orbitals and are easy to form complexes with different structures with organic ligands. Such complexes often have rich electrochemical properties, and as catalysts, they can catalyze many chemical reactions of oxidation. For example, transition metal complexes can efficiently catalyze the oxidation of benzoin to benzil under mild conditions, and can be recycled and applied mechanically. [0003] Benzil, an important raw material for organic synthesis, is an intermediate for the synthesis of the drug phenytoin, and can also be used as a photosensitizer for insecticides and UV-curable resins. It is widely used in the production of medicines, spices, and daily chemicals. There are many methods ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/04
CPCC07B2200/13C07F15/045
Inventor 殷艺晅李星卢越
Owner NINGBO UNIV
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