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A kind of application and application method of supramolecular self-assembly based on ten-membered melon ring

A supramolecular self-assembly, ten-membered melon ring technology, applied in separation methods, chemical instruments and methods, precipitation separation and other directions, can solve the problems of difficult separation, low content, limited development and application, etc., and achieve broad development prospects and applications. significant effect

Active Publication Date: 2019-10-18
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ten-membered cucurbit ring is a product with a low content in the synthesis process of the cucurbit ring. It was first reported in the form of Q[5]@Q[10] by Day's research group in 2002. However, due to factors such as low content and difficult separation, its application is limited Development and Application

Method used

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  • A kind of application and application method of supramolecular self-assembly based on ten-membered melon ring
  • A kind of application and application method of supramolecular self-assembly based on ten-membered melon ring
  • A kind of application and application method of supramolecular self-assembly based on ten-membered melon ring

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, an application based on ten-membered melon ring supramolecular self-assembly, the structural diagram of the ten-membered melon ring is as attached figure 1 As shown, it is used to trap and precipitate metal ions, and the crystals are obtained by dissolving the obtained precipitate in nitric acid, and the ten-membered melon ring is recovered. The specific method is as follows:

[0035] a. Dissolve 20 mg of 10-yuan melon rings in 2 mL of concentrated hydrochloric acid, shake to dissolve, and obtain product A;

[0036] b. Add 2mg BaCl 2 Add 2mL of water, shake and dissolve to obtain product B;

[0037] c. Mix product A and product B in a beaker, a white precipitate is obtained at the moment of mixing, and the white precipitate is obtained by filtration. Characterized by energy spectrum, it can be known that the white precipitate contains Ba 2+ and melon rings, such as Figure 4 ; Or soak the white precipitate in the original solution, place it in the air a...

Embodiment 2

[0039] Embodiment 2, an application based on ten-membered cucurbit ring supramolecular self-assembly, which is used to trap La in lanthanide metal ions 3+ 、Ce 3+ and Pr 3+ metal ions, and obtain crystals by dissolving the obtained precipitate in nitric acid, and recover the ten-membered melon ring, the specific method is as follows:

[0040] a. Add 20 mg of ten-membered melon rings into concentrated hydrochloric acid, shake to dissolve, and obtain product A;

[0041] b. Add 2 mg of each of the 14 kinds of lanthanide metal nitrates into water, shake and dissolve to obtain product B;

[0042] c. Mix product A and product B in a beaker, you can get a white precipitate at the moment of mixing, filter to get the white precipitate, and characterize it by energy spectrum, or soak the white precipitate in the original solution and place it in the air Crystals can be obtained by storing at room temperature for 1 day, and characterized by X-ray single crystal diffractometer;

[0043...

Embodiment 3

[0045] Embodiment 3, a kind of application based on ten-membered melon ring supramolecular self-assembly, it is used in alkali metal system Na + 、K + , Rb + 、Cs + Medium selective non-precipitating K + , and by dissolving the obtained precipitate in nitric acid to obtain crystals, the ten-membered melon ring is recovered, and the specific method is as follows:

[0046] a. Add 20 mg of ten-membered melon rings into concentrated hydrochloric acid, shake to dissolve, and obtain product A;

[0047] b. Na + 、K + , Rb + 、Cs + Add 2 mg of nitrates into water, shake to dissolve, and obtain product B;

[0048] c. Mix product A and product B in a beaker, you can get a white precipitate at the moment of mixing, filter to get the white precipitate, and characterize it by energy spectrum, or soak the white precipitate in the original solution and place it in the air Crystals can be obtained by storing at room temperature for 1 day, and characterized by X-ray single crystal diffracto...

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Abstract

The invention discloses application and an application method of a cucurbit(10)uril-based supramolecular self-assembly. The cucurbit(10)uril-based supramolecular self-assembly captures, precipitates and releases metal ions. Effective wide-spectrum trap and precipitation of metal ions can be achieved, and specific metal ions can be captured in a specific system. After capturing, crystals can be dissolved in a nitric acid system to obtain cucurbit(10)uril with no metal ions.

Description

technical field [0001] The invention relates to an application and an application method of a supramolecular self-assembly, in particular to an application and an application method of a ten-membered melon ring-based supramolecular self-assembly. Background technique [0002] Cucurbit[n]uril, also known as cucurbit[n]uril, (abbreviated as CB[n] or Q[n]), named for its structure resembling pumpkin, is a macrocycle following crown ether, cyclodextrin and calixarene. Another new type of cage-like host compound after the compound. From the perspective of structural properties, the cucurbit ring has a highly symmetrical hydrophobic cavity and open and full of polar carbonyl oxygen atoms. The above characteristics of this structure make It can selectively include small molecules such as organic, inorganic and biomolecules of appropriate size in the solution state, or have a hydrophilic coordination with dipole or ionic compounds at the port. With the research With the deepening o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D21/01
Inventor 姚宇清陶朱祝黔江杨梅王新新王成会
Owner GUIZHOU UNIV
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