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Binuclear metal organic complex based on copper (II) and preparation method thereof

A technology of organic complexes and binuclear metals, which is applied in the field of copper-based binuclear metal-organic complexes and its preparation, can solve the problem of less transition metal organic complexes, and achieve the effects of easy access, wide source of raw materials, and mild reaction conditions

Inactive Publication Date: 2017-03-08
ZHAOQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, there have been few studies on the construction of new transition metal-organic complexes based on furan-2,5-dicarboxylic acid and bipyridine. Sen et al. reported a metal-organic complex with a 1D+1D→2D network structure [6] , Li et al. obtained a three-dimensional metal-organic complex [7]
However, transition metal organic complexes synthesized using furan-2,5-dicarboxylic acid and 3,3'-dimethyl-4,4'-bipyridine have not been reported yet.

Method used

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  • Binuclear metal organic complex based on copper (II) and preparation method thereof
  • Binuclear metal organic complex based on copper (II) and preparation method thereof
  • Binuclear metal organic complex based on copper (II) and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] 1. Preparation of copper(II)-based binuclear metal-organic complexes

[0030] The preparation method comprises the following steps:

[0031] (1) Dissolve and disperse 0.25mmol (0.039mg) of furan-2,5-dicarboxylic acid in water, and use NaOH (0.016g, 0.4mmol) solution to adjust the pH value to 7.0-8.0 to obtain a ligand solution;

[0032] (2) Add an equimolar amount of Cu(NO 3 ) 2 ·3H 2 O (0.060 g; 0.25 mmol) and 3,3'-dimethyl-4,4'-bipyridine (0.046 g; 0.25 mmol);

[0033] (3) Add the mixed solution into a 23mL polytetrafluoroethylene reactor, keep it at 130°C for 72 hours under autogenous pressure, and then lower it to room temperature at a rate of 5°C / h;

[0034] (4) The mixture in step 3 was filtered, and the crystals were collected, washed with absolute ethanol and dried to obtain blue crystals (tested yield: 48%).

[0035] 2. Identification of Cu(II)-based binuclear metal-organic complexes

[0036] Through the following elemental analysis, IR spectrum and X-ray...

Embodiment 2

[0046] Example 2: Temperature-varying magnetic susceptibility of binuclear metal-organic complexes

[0047] This embodiment adopts the temperature-varying magnetic susceptibility of the copper(II)-based binuclear metal-organic complex obtained in Embodiment 1. The specific research methods are as follows:

[0048] (1) The applied magnetic field according to the present invention: 1 kOe.

[0049] (2) The temperature range of variable temperature magnetic susceptibility: 300K-2K.

[0050] (3) Experimental results

[0051] Temperature-varying magnetic susceptibility results (eg Figure 4 ) shows that the copper (II)-based binuclear metal-organic complex of the present invention exhibits antiferromagnetism in the range of 300K-2K.

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Abstract

The invention relates to a binuclear metal organic complex based on copper (II), the binuclear metal organic complex is a copper metal organic complex with a repeating unit of Cu (fdc) (dmbpy) (H2O), fdc in the Cu (fdc) (dmbpy) (H2O) is furan-2, 5-dicarboxylic acid, and dmbpy is 3, 3 '-dimethyl-4, 4 '-dipyridine; the binuclear metal organic complex based on copper (II) has good antiferromagnetism.

Description

technical field [0001] The invention relates to a metal-organic complex, in particular to a copper (II)-based binuclear metal-organic complex and a preparation method thereof. Background technique [0002] In recent years, the design and synthesis of molecular-based functional materials with high-dimensional ordered spatial structures and excellent physical and chemical properties have attracted great interest. Metal complex molecule-based magnets are currently the most widely and deeply studied class, and their spin carriers are paramagnetic metal ions. Proper molecular assembly from these high-spin complexes can lead to the formation of polynuclear, one-, two-, and three-dimensional molecular-based magnets. [0003] Metal-organic complexes are a new type of functional material, which are synthesized by self-assembly of metal ions and organic ligands under certain conditions. Due to its unique skeleton structure and controllable pore size, it is widely used in gas adsorpt...

Claims

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Application Information

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IPC IPC(8): C07F1/08
CPCC07B2200/13C07F1/005C07F1/08
Inventor 马德运郭海福覃亮雷佳眉马燕华林婉纯
Owner ZHAOQING UNIV