Tetranuclear water cluster copper-containing coordination polymer with mixed ligand, and preparation method thereof
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A technology of mixed ligands and copper coordination, applied in the direction of copper organic compounds, etc., to achieve the effects of high yield, good application prospects, and simple synthesis methods
Inactive Publication Date: 2017-06-13
QINGDAO UNIV OF SCI & TECH
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At present, the use of mixed ligands to construct copper coordination polymers containing tetranuclear water clusters has not been reported.
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Embodiment 1
[0026] Add 0.20mmol of 1,4-bis(imidazolylmethylene)benzene, 0.20mmol of tetrafluoroterephthalic acid and 0.30mmol of copper nitrate into 5ml of water, stir for 20min, transfer to a closed container and slowly heat up to 180°C water The reaction is carried out under thermal conditions, and after 24 hours of reaction, the coordination polymer C is obtained by filtering at 5°C / hour down to room temperature 50 h 54 CuF 4 N 12 o 10 , yield 77.2% (based on Cu).
[0027] Get the tetranuclear water cluster copper coordination polymer with mixed ligands prepared in Example 1 to carry out powder XRD test, and its collection of patterns is as follows figure 1 As shown, there are diffraction peaks at 7.68, 8.39, 9.31, 11.14, 14.99, 15.49, 16.41, 19.35, 20.97, 22.89, 23.40, 27.46, 32.43, 37.91 for 2θ expressed in degrees.
[0028] The tetranuclear water cluster-containing copper coordination polymer with mixed ligands prepared in Example 1 is used for infrared testing, and its spectru...
Embodiment 2
[0041] Add 0.18mmol of 1,4-bis(imidazolylmethylene)benzene, 0.21mmol of tetrafluoroterephthalic acid and 0.30mmol of copper nitrate into 5ml of water, stir for 20min, transfer to a closed container and slowly heat up to 160°C water The reaction was carried out under thermal conditions, and after 30 hours of reaction, the coordination polymer C was obtained by filtering at 4°C / hour down to room temperature 50 h 54 CuF 4 N 12 o 10 , yield 68.1% (based on Cu).
Embodiment 3
[0043] Add 0.22mmol of 1,4-bis(imidazolyl methylene)benzene, 0.22mmol of tetrafluoroterephthalic acid and 0.35mmol of copper perchlorate into 5ml of water, stir for 20min, transfer to an airtight container and slowly raise the temperature to 170 The reaction was carried out under hydrothermal conditions at ℃, and after 36 hours of reaction, the coordination polymer C 50 h 54 CuF 4 N 12 o 10 , yield 72.0% (based on Cu).
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Abstract
The invention relates to the technical field of inorganic and organic hybrid materials and particularly discloses a preparation method of a tetranuclear water cluster copper-containing coordination polymer with a mixed ligand. According to the tetranuclear water cluster copper-containing coordination polymer with the mixed ligand, the molecular formula is C50H54CuF4N12O10, the polymer is a triclinic system, and a space group and the cell parameters are as shown in the specification. The tetranuclear water cluster copper-containing coordination polymer with the mixed ligand is capable of accurately measuring the positions of water molecules in crystal lattices through a single crystal X-ray diffractometer, so that various parameters of the hydrogen interaction among the water molecules can be accurately described and various physical and chemical behaviors of the water molecules in the coordination polymer can be more deeply understood. The tetranuclear water cluster copper-containing coordination polymer with the mixed ligand is easy to prepare, good in stability, few in defects of the synthetic material and high in crystallinity, and has a very good application prospect in the fields such as molecular magnets and catalysis.
Description
technical field [0001] The invention relates to the technical field of inorganic-organic hybrid materials, in particular to a tetranuclear water cluster-containing copper coordination polymer with mixed ligands and a preparation method thereof. Background technique [0002] The coordination chemistry of mixed ligands has always been one of the hot research areas of coordination chemistry. Commonly used mixed ligands include carboxylic acid ligands and nitrogen-containing ligands. Coordination polymers constructed with carboxylic acid ligands and nitrogen-containing ligands have good stability, are easy to prepare, and have a wide range of uses. They have potential applications in gas adsorption and separation, molecular magnetism, catalysis, and fluorescence. Rigid ligands are often used to support the main structure of coordination polymers, while flexible ligands can adjust their own coordination modes in the process of self-assembly to finally obtain different configurat...
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