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Mononuclear nickel coordination compound, and preparation method and application thereof

A coordination compound and mononuclear technology, which is applied in nickel organic compounds, organic chemical methods, and hydrocarbon production from carbon oxides, can solve the problems of high price and achieve the effects of simple preparation, high yield, and high product purity

Inactive Publication Date: 2020-02-21
KUNMING INST OF BOTANY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Photocatalytic reduction of CO 2 The core of the photocatalytic material is the photocatalytic material. Traditional photocatalytic materials generally use expensive noble metal complexes. There are few reports on the use of cheap metal nickel to prepare photocatalysts for the reduction of carbon dioxide, especially the use of such cheap metal compounds for carbon dioxide Reports of conversion to methane are extremely rare

Method used

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  • Mononuclear nickel coordination compound, and preparation method and application thereof
  • Mononuclear nickel coordination compound, and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0027] Add 84.52mg (0.2mmol) of 1,2-bis(dicyclohexylphosphoryl)-ethane, 131.24mg (0.2mmol) of bistriphenylphosphine nickel chloride into 40mL of acetonitrile and mix well; Argon was introduced into the mixture, and after stirring and reacting at 60° C. for 20 hours, a yellow-brown precipitate was obtained; the above-mentioned precipitate was dissolved with a mixed solution of acetonitrile and ethanol, wherein the volume of acetonitrile was 50%. Slowly volatilize for 2 weeks to obtain a yellow-green single crystal sample, which is a mononuclear nickel coordination compound.

Embodiment 2

[0029] Add 84.52mg (0.2mmol) of 1,2-bis(dicyclohexylphosphoryl)-ethane, 65.62mg (0.1mmol) of bistriphenylphosphine nickel chloride into 40mL of acetonitrile and mix well; Argon gas was passed through the medium, and after stirring and reacting at 60° C. for 15 hours, a yellow-brown precipitate was obtained; the above-mentioned precipitate was dissolved with a mixed solution of acetonitrile and ethanol, wherein the volume of acetonitrile was 50%. Slowly volatilize for 2 weeks to obtain a yellow-green single crystal sample, which is a mononuclear nickel coordination compound.

Embodiment 3

[0031] Add 84.52mg (0.2mmol) of 1,2-bis(dicyclohexylphosphoryl)-ethane, 98.28mg (0.15mmol) of bistriphenylphosphine nickel chloride into 40mL of acetonitrile and mix well; Argon gas was passed through the medium, and after stirring and reacting at 70°C for 15 hours, a yellow-brown precipitate was obtained; the above-mentioned precipitate was dissolved with a mixed solution of acetonitrile and ethanol, wherein the volume of acetonitrile was 50%. Slowly volatilize for 2 weeks to obtain a yellow-green single crystal sample, which is a mononuclear nickel coordination compound.

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Abstract

The invention relates to the technical field of coordination compound materials, and discloses a mononuclear nickel coordination compound, and a preparation method and an application thereof. An organic ligand 1,2-bis(dicyclohexylphosphino)ethane and nickel ions form the mononuclear nickel coordination compound having a chemical formula of C26H48Cl2NiP2 through a chlorine bridge bond. The coordination compound is a solid crystal, and the crystal belongs to a triclinic system and a P1 space group. The preparation method comprises the following steps: reacting a bis(triphenylphosphine)nickel chloride solid with 1,2-bis(dicyclohexylphosphino)ethane in an acetonitrile solution to obtain a yellowish-brown precipitate, then dissolving the precipitate in a mixed solution of acetonitrile and ethanol, and slowly volatilizing the solvents to obtain the yellow-green crystal. The compound can be used as a photocatalyst to convert greenhouse gas carbon dioxide into methane gas with high added values and CO. The preparation method has the advantages of simplicity, easiness in implementation, and high purity and high yield of the product, and the product has a good application prospect in the field of photocatalytic conversion of carbon dioxide.

Description

technical field [0001] The present invention relates to the technical field of coordination compound materials, more specifically, to a mononuclear nickel coordination compound and its preparation method and application. Background technique [0002] With the rapid development of global industry, the consumption of fossil energy is gradually increasing, CO 2 Emissions are increasing day by day, resulting in atmospheric CO 2 The increase of carbon dioxide content will cause a series of problems such as greenhouse effect and energy shortage. Therefore, how to effectively use the huge carbon energy on the earth and reduce CO in the atmosphere 2 Content has become a very important issue. will CO 2 The concept of reducing to chemical fuel can fundamentally solve the problem of CO 2 The climate and environmental problems brought about by the emissions, in order to achieve this purpose, can use visible light to catalytically reduce CO 2 , to obtain such as CO, COOH, CH 4 Wait...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/04B01J31/24C07C1/02C07C9/04C01B32/40
CPCC07F15/045B01J31/2414C07C1/02C01B32/40C07B2200/13C07C2531/24B01J2231/62B01J2531/847B01J2531/0241B01J35/39C07C9/04
Inventor 杨建红李小年杜雪
Owner KUNMING INST OF BOTANY - CHINESE ACAD OF SCI
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