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A kind of nickel metal coordination polymer and preparation method thereof

A coordination polymer and metal coordination technology, applied in the direction of hybrid capacitor electrodes, etc., can solve the problems of complex preparation process and low reproducibility, and achieve the effect of simple operation, good reproducibility and mild conditions

Active Publication Date: 2020-02-11
YANAN UNIV
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Problems solved by technology

[0005] Another object of the present invention is to provide a method for preparing a nickel-metal coordination polymer, which solves the problems of complex and low reproducibility in the existing preparation process

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  • A kind of nickel metal coordination polymer and preparation method thereof
  • A kind of nickel metal coordination polymer and preparation method thereof
  • A kind of nickel metal coordination polymer and preparation method thereof

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preparation example Construction

[0027] A kind of preparation method of nickel metal coordination polymer of the present invention, concrete preparation process comprises the following steps:

[0028] Step 1. Weigh an appropriate amount of nickel acetate, terephthalic acid, 1,3-bis(1-imidazolyl)benzene and an appropriate amount of deionized water in a 25mL beaker, stir evenly, and add an appropriate amount of KOH obtains mixed solution I;

[0029] In step 1, the molar concentration ratio of nickel acetate, terephthalic acid, 1,3-bis(1-imidazolyl)benzene and KOH is 1:1:1:1.

[0030] Step 2. Put the mixed solution I in a 25mL reaction kettle, and in the electrothermal constant temperature blast drying oven, first heat it quickly to a certain temperature, and react at a constant temperature for a period of time, then cool down to room temperature, take out the reaction kettle to obtain the mixed solution II, The mixed solution II was filtered, washed and dried to obtain emerald green bulk crystals, ie nickel me...

Embodiment 1

[0037] Weigh 0.1mmol of nickel acetate tetrahydrate, 0.1mmol of terephthalic acid, and 0.1mmol of 1,3-bis(1-imidazolyl)benzene, add 12mL of distilled water to a 25mL beaker, and add 0.1mmol of KOH to obtain mixed solution I, put mixed solution I into a 25mL stainless steel high-pressure reactor lined with polytetrafluoroethylene; Raise the temperature from 20°C to 200°C, perform a rapid heating reaction, react at a constant temperature of 200°C for 72 hours, then cool down to room temperature at a rate of 10°C / h, filter, wash and dry the reaction solution to obtain an emerald green massive crystal complex. That is, {[Ni(ppda)(mbib)]·H 2 O} n Complexes.

Embodiment 2

[0039]Weigh 0.1mmol of nickel acetate tetrahydrate, 0.1mmol of terephthalic acid, and 0.1mmol of 1,3-bis(1-imidazolyl)benzene, add 12mL of distilled water to a 25mL beaker, and add 0.1mmol of KOH to obtain mixed solution I, put mixed solution I into a 25mL stainless steel high-pressure reactor lined with polytetrafluoroethylene; Raise the temperature from 20°C to 180°C, perform a rapid heating reaction, react at a constant temperature of 180°C for 48 hours, then cool down to room temperature at a rate of 12°C / h, filter, wash and dry the reaction solution to obtain an emerald green massive crystal complex , namely {[Ni(ppda)(mbib)]·H 2 O} n Complexes.

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Abstract

A nickel metal coordination polymer disclosed in the invention has a three-dimensional porous supramolecular network structure, and has a chemical formula of {[Ni(ppda)(mbib)].H2O}n, wherein ppda represents terephthalic acid, and bib represents 1,3-bis(1-imidazolyl)benzene. The coordination polymer belongs to the orthorhombic system, and the space group is Pna21. The carboxyl groups of p-phenylenediacetic acid and metal Ni are bridged in a "V" form to form a one-dimensional ring, the adjacent one-dimensional rings are combined by a hydrogen bond to form a two-dimensional supramolecular layer,and the three-dimensional porous supramolecular network structure is formed through the pi-pi action between phenyl rings of the 1,3-bis(1-imidazolyl)benzene ligand, so a certain foundation is laid for the electrochemical expansion of the Ni coordination polymer. A preparation method of the nickel metal coordination polymer adopts hydrothermal synthesis. The preparation method has the advantages of simplicity in operation, mild conditions, high yield, good reproducibility, and knowing of the reaction process.

Description

technical field [0001] The invention belongs to the technical field of nickel metal complex materials, relates to a nickel metal coordination polymer, and also relates to a preparation method of the complex. Background technique [0002] In recent years, the design and construction of supramolecular chemical systems with conductive, magnetic, and luminescent properties based on the supramolecular interactions between metals and organic ligands has become one of the very active and promising research topics in the fields of modern chemistry and materials science. one. Studies have shown that polycarboxylic acids are widely used to construct one-dimensional, two-dimensional and three-dimensional supramolecular complexes with novel structures and unique properties due to their various flexible bonding methods. Most of the existing research focuses on aromatic polycarboxylic acids. Complexes. Due to the diversity of the dihedral angles between the carboxyl plane and the benzen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00H01G11/48H01G11/24
CPCC08G83/008H01G11/24H01G11/48Y02E60/13
Inventor 张美丽郑艳金
Owner YANAN UNIV
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