Cucurbit[8]uril-based porous supermolecular assembly and preparation method thereof

A technology of supramolecular assembly and gourd, which is applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., to achieve high adsorption efficiency, simple preparation process, and avoidance of escape effects.

Inactive Publication Date: 2016-09-14
NANKAI UNIV
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Problems solved by technology

Although cucurbit[8]uril has been successfully applied to the bonding of various guest molecules and the construction of supramolecular assemblies, most of the supramolecular assembly systems constructed by cucurbit[

Method used

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  • Cucurbit[8]uril-based porous supermolecular assembly and preparation method thereof
  • Cucurbit[8]uril-based porous supermolecular assembly and preparation method thereof
  • Cucurbit[8]uril-based porous supermolecular assembly and preparation method thereof

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[0031] Examples:

[0032] A kind of porous supramolecular assembly based on cucurbit[8]urea, its building unit is cucurbit[8]urea main body (CB[8]), and hexasubstituted naphthyl imidazole salt polypyridine ruthenium complex as guest [SIMRu(bpy ) 3 ], the binary supramolecular aggregates constructed by the host-guest bonding can effectively adsorb many types of anionic compounds in water, among which the chemical formula of cucurbit[8] urea is C 48 H 48 N 32 O 16 , The chemical formula of the hexasubstituted naphthyl imidazole salt polypyridine ruthenium complex is C 121 H 105 Cl 8 N 18 Ru, the structure of the aggregate building unit is as follows:

[0033]

[0034] When CB[8]:SIMRu(bpy) 3 When the ratio is 3:1, the hydration kinetic particle size in water is 138.2nm, and the surface potential is +44mV.

[0035] A preparation method of the cucurbit[8] urea-based porous supramolecular assembly includes the following steps:

[0036] 1) Dissolve 67.98mg (0.2mmol) of 4,4'-dibromomethylene...

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Abstract

The construction unit of a cucurbit[8]uril-based porous supermolecular assembly adopts cucurbit[8]uril (CB[8]) as a main body and a hexasubstituted naphthyl imidazolium salt polypyridyl ruthenium complex (SIMRu(bpy)3) as an object, and a binary supermolecular aggregate constructed through bonding the main body and the object can effectively adsorb various types of anion compounds in water. The assembly can be combined with electronegative anions through electrostatic interaction by exchanging counter ions, and the supermolecular assembly can stably exist in water to avoid escaping of anion compounds from the solid assembly, so the supermolecular assembly has a high adsorption efficiency; multivalent positive charges exist in the object molecule, so the anion adsorption speed of the supermolecular assembly is fast, and the anion compounds in water can be rapidly removed; and a preparation method of the supermolecular assembly has the advantages of simplicity, easy enforcement and low material cost, and the supermolecular assembly has wide application in removal of anion pollutants in water.

Description

technical field [0001] The invention relates to solid material adsorption technology, in particular to a porous supramolecular assembly based on cucurbit [8] urea and a preparation method thereof. Background technique [0002] The bottom-up approach to construct supramolecular nanostructures usually involves self-organization between building blocks. The process of self-assembly was originally a description of biological processes, and now it has become a very important construction method in the fields of supramolecular chemistry and material chemistry. In the past few decades, the construction of functional nanomaterials through supramolecular self-assembly has become the unremitting goal of supramolecular chemists. Through the special design of small molecule building blocks, such supramolecular nanoassemblies can be used in drug delivery, gene carrier, sensing, catalysis and other fields. A variety of non-covalent forces are used to construct supramolecular nanostructu...

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Application Information

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IPC IPC(8): C08G83/00B01J20/26B01J20/30C02F1/28C02F1/58
CPCB01J20/26C02F1/285C08G83/008
Inventor 刘育张雯王丽华张衡益
Owner NANKAI UNIV
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