Unlock instant, AI-driven research and patent intelligence for your innovation.

Quaternary ammonium salt (salicylidene amino acid) supported functional ligand and preparation method thereof

A technology supported by salicylaldehyde amino acid and quaternary ammonium salt, which is applied in the field of organic ligands and organometallic coordination polymers, and can solve the problem of difficult cultivation of huge crystal coordination polymer materials or coordination polymer membrane materials , affect organic ligands and metal ions, slow self-assembly process and other issues, to achieve the effect of abundant raw materials, simple and easy method, and novel structure

Inactive Publication Date: 2014-07-23
HUAIHAI INST OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, professionals are well aware that the existing polyarylic acid ligands have poor water solubility, and most of the preparation of coordination polymers is carried out in organic solvents, and the required reaction temperature is also high, which affects the slow self-assembly between organic ligands and metal ions. process, so far it is difficult to cultivate huge crystal coordination polymer materials or the preparation of coordination polymer film materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Quaternary ammonium salt (salicylidene amino acid) supported functional ligand and preparation method thereof
  • Quaternary ammonium salt (salicylidene amino acid) supported functional ligand and preparation method thereof
  • Quaternary ammonium salt (salicylidene amino acid) supported functional ligand and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 Preparation of quaternary ammonium salt supported (salicylaldehyde amino acid) functional ligand (Ia-1)

[0032] Step 1 Preparation of Dissalicylaldehyde-Modified Quaternary Ammonium Salt IIIa-1

[0033]

[0034]In a four-neck flask equipped with a stirrer, weigh 23 grams of N, N, N', N'-tetramethylethylenediamine and dissolve it in 80 ml of acetonitrile to prepare N, N, N', N'- The acetonitrile solution of tetramethylethylenediamine, then weigh 70 grams of 5-chloromethyl salicylaldehyde and dissolve in 100 milliliters of acetonitrile to prepare the acetonitrile solution of 5-chloromethyl salicylaldehyde. Control the temperature of the acetonitrile solution of 5-chloromethyl salicylaldehyde between 8°C and 15°C, slowly add the acetonitrile solution of N,N,N',N'-tetramethylethylenediamine into the 5 - In the acetonitrile solution of chloromethyl salicylaldehyde, after reacting for 4 hours, raise the temperature of the reaction material to 80-85°C, then stir...

Embodiment 2

[0039] Embodiment 2 Preparation of quaternary ammonium salt supported bis(salicylaldehyde amino acid) functional ligand (Ib-1)

[0040]

[0041] According to the method and operation steps of Example 1, the anthranilic acid in Step 3 of Example 1 was replaced with glycine to prepare light yellow Ib-1.

[0042] Dissolve the light yellow Ib-1 in deionized water, adjust the pH to 8.5 with aqueous sodium carbonate solution, slowly add aqueous copper chloride solution dropwise, the color of the solution gradually turns dark blue, and blue columnar crystals precipitate out after a few days.

Embodiment 3

[0043] Example 3 Preparation of quaternary ammonium salt supported bis(salicylaldehyde amino acid) functional ligand (IIa-2)

[0044]

[0045] According to the method and operation steps of Example 1, N, N, N', N'-tetramethylethylenediamine in Step 3 of Example 1 was replaced with 1,6-dimethylaminohexane to obtain orange-red IIa-2.

[0046] Dissolve the orange-red IIa-2 in deionized water, adjust the pH to 8.5 with aqueous sodium carbonate solution, slowly add zinc chloride aqueous solution dropwise, the color of the solution gradually deepens, and red crystals precipitate out after a few days.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a quaternary ammonium salt (salicylidene amino acid) supported functional ligand which belongs to a flexible ligand and is used for preparing a coordination polymer material. The quaternary ammonium salt unit in the molecular structure ensures the water solubility of the functional ligand; and the salicylidene amino acid in the molecular structure is a Schiff base conjugated unit, belongs to a tridentate chelating ligand, and provides conditions for color rendering or fluorescent color development of the coordination polymer.

Description

technical field [0001] The invention relates to an organic ligand, in particular to a functional organic ligand supported by a quaternary ammonium salt (salicylaldehyde amino acid), which is used for preparing organometallic coordination polymers (metal-organic frameworks, MOFs), and belongs to functional materials field. technical background [0002] Organometallic coordination polymers are also known as organometallic frameworks or metal-organic coordination networks. Coordination polymers refer to metal ions or metal clusters as nodes and organic ligands as bridges, using the coordination geometry of metal ions and the diversification of organic ligand structures to form self-assembly through coordination bonds. Porous framework coordination polymers with periodic one-dimensional chain, two-dimensional layered or three-dimensional network structure. The metal ions used for the preparation of coordination polymers refer to transition metal ions and rare earth metal ions,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07C251/24C07C249/02
Inventor 张田林
Owner HUAIHAI INST OF TECH