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Copper (II) coordination compound, hydrogel as well as preparation method and application of copper (II) coordination compound and hydrogel

A coordination compound and hydrogel technology, applied in copper organic compounds, chemical instruments and methods, organic compound/hydride/coordination complex catalysts, etc.

Active Publication Date: 2018-06-12
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing amino acid-based metal hydrogels, most of the ligands are L-configuration amino acid derivatives, and (L+D)-configuration amino acid derivatives rarely form metal hydrogels with metal ions.

Method used

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  • Copper (II) coordination compound, hydrogel as well as preparation method and application of copper (II) coordination compound and hydrogel
  • Copper (II) coordination compound, hydrogel as well as preparation method and application of copper (II) coordination compound and hydrogel
  • Copper (II) coordination compound, hydrogel as well as preparation method and application of copper (II) coordination compound and hydrogel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Weigh 256mg of L-PF and D-PF samples respectively to prepare 0.1M (0.1mol / L) aqueous solution of L-PF and D-PF, the solution is colorless and transparent. Prepare 0.1M CaCl separately 2 , FeCl 2 , Bi(NO 3 ) 3 , NiCl 2 , Pb(NO 3 ) 2 , CuSO 4 , La(NO 3 ) 3 , ZnCl 2 , CoCl 2 , MnSO 4 aqueous solution.

[0055] Pipette 100 μL each of 0.1M L-PF and D-PF aqueous solutions to mix, and then mix with the above-mentioned ionic solutions in a molar equivalent ratio of 2:1 in a glass bottle, adjust the pH of the solution to 7-9, and use ultrasound to observe whether A metal hydrogel is formed. It was found that in the above mixture, except for CuSO 4 In addition to the formation of hydrogels, other compounds and (L+D)-PF form precipitates or form viscous liquids or clear liquids, which cannot form metal hydrogels, as shown in the attached figure 1 shown.

[0056] (L+D)-PF aqueous solution and CuSO 4 According to the above conditions, after a few seconds of ultrason...

Embodiment 2

[0058] Prepare 0.025M aqueous solutions of L-PF and D-PF respectively, and the solutions are colorless and transparent. Prepare 0.025M CuSO 4 aqueous solution.

[0059] Pipette the above-mentioned L-PF and D-PF aqueous solutions in different ratios (10:0, 9:1, 8:2, 7:3, 6:4, 5:5, 4:6, 3:7, 2 :8,1:9,0:10) were mixed to form a (L+D)-PF solution, and then each (L+D)-PF was mixed with an equal concentration of CuSO 4 The solution was mixed in a glass bottle according to 2:1 molar equivalent, the pH of the solution was adjusted to 7-9, and ultrasonication was performed. As a result, it was found that the above-mentioned mixture L-PF and D-PF had different equivalent ratios, and different colors would appear. Although metal hydrogels could not be formed (the concentrations of L-PF and D-PF were lower than the gel-forming concentration), L-PF and D-PF When the D-PF equivalent ratio is 1:1, it will still appear purple, as attached Figure 6 shown.

Embodiment 3

[0061] Prepare 0.005M aqueous solutions of L-PF and D-PF respectively, and the solutions are colorless and transparent. Prepare 0.005M CuSO 4 aqueous solution.

[0062] Pipette 0.005M L-PF and D-PF aqueous solutions in different ratios (10:0, 9:1, 8:2, 7:3, 6:4, 5:5, 4:6, 3:7, 2:8, 1:9, 0:10) to form a (L+D)-PF solution, and then each (L+D)-PF was mixed with an equal concentration of Cu(II) solution at a molar equivalent of 2:1 to adjust The pH of the solution is 7-9, ultrasonication, the color change of each system is the same as that of Example 2, but the color is slightly lighter.

[0063] Measure the EPR spectrum of the above-mentioned (L+D)-PF-Cu respectively, as attached Figure 7 shown. It was found that the mixing ratio of L-PF and D-PF was from 10:0 to 5:5, the Cu(Ⅱ) signal gradually weakened, and the signal of oxygen anions gradually increased; the mixing ratio of L-PF and D-PF was from 5:5 to At 0:10, the Cu(Ⅱ) signal gradually increased, and the oxygen anion s...

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Abstract

The invention discloses a copper (II) coordination compound. A ligand (L+D)-PF is prepared from L-PF which is shown in the description and D-PF which is shown in the description according to a molar equivalent of 1 to 1, and the coordination compound is prepared from the ligand (L+D)-PF and copper (II) ions under a condition that the pH (Potential of Hydrogen) is 7 to 9. The invention also provides copper (II) hydrogel, a preparation method of the copper (II) hydrogel and application of the copper (II) coordination compound and the copper (II) hydrogel in aspects of carrying oxygen and releasing negative oxygen ions. The copper (II) coordination compound and the copper (II) hydrogel, provided by the invention, are capable of specifically identifying copper ions and are capable of carryingthe oxygen and releasing the negative oxygen ions.

Description

technical field [0001] The present application relates to the technical field of coordination compounds, in particular to a copper (II) coordination compound, hydrogel and its preparation method and application. Background technique [0002] Supramolecular gel, namely small molecule gel, refers to a jelly-like substance formed by self-assembly of small molecules (gelling factors) to form a fibrous network structure to bind solvents. Supramolecular hydrogels are small molecule gels in which the bound solvent in the network structure is water. Hydrogels have good biocompatibility and biodegradability, and are often used in biosensors, biomaterials, scaffolds for tissue engineering, etc. [0003] By introducing different functional groups into the gel factor, it has multiple stimuli responsiveness (such as temperature, pH, ionic strength, etc.). Additives (such as metal ions, nanoparticles, etc.) can also be added to change the phase and performance of the gel. For example, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F1/08C07D213/38B01J31/22G01N21/78
CPCB01J31/2217C07D213/38C07F1/005G01N21/78
Inventor 王晓娟魏传晚林英武
Owner NANHUA UNIV
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