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A kind of supramolecular cage complex and its preparation method and application

A technology of complexes and supramolecules, applied in cobalt organic compounds, zinc organic compounds, organic chemical methods, etc., can solve problems such as residence and inclusion research, and achieve the effects of wide sources of raw materials and reagents, low price, and high sensitivity

Active Publication Date: 2020-04-07
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current research only stays in the combination and containment of different guest small molecules by discrete coordination supramolecular cage compounds, and a small amount of them are used as reaction vessels in organic catalysis, etc.

Method used

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  • A kind of supramolecular cage complex and its preparation method and application
  • A kind of supramolecular cage complex and its preparation method and application
  • A kind of supramolecular cage complex and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0065] Preparation of supramolecular cage complex {[Co 4 (μ 4 -H 2 O)(TBSC)] 4 [DC] 8}

[0066] (where TBSC stands for 5,11,17,23-tetra-tert-butyl-sulfonyl bridged calix[4]arene ligand, DC stands for 5-(pyrenyl-1-methyl)aminoisophthalic acid ligand)

[0067] Take Co(NO 3 ) 2 ·6H 2 O (72.80mg, 0.25mmol), 5-(pyrenyl-1-methyl)aminoisophthalic acid (67.50mg, 0.17mmol) and H 4 TBSC (42.50 mg, 0.05 mmol) was dissolved in 5 mL of N,N'-dimethylformamide (DMF) and 4 mL of methanol mixed solvent, heated to 100 °C at a heating rate of 0.5 °C / min, and the temperature was maintained at 100 After reacting at ℃ for 24 hours, the temperature was slowly lowered to obtain red crystals. Yield: 85%.

[0068] The product was characterized by X-ray single crystal diffraction, and the specific results are as follows:

[0069] Table 1. {[Co 4 (μ 4 -H 2 O)(TBSC)] 4 [DC] 8} crystallographic parameters

[0070]

[0071] Above-mentioned data shows that present embodiment has obtained ...

preparation example 2

[0074] Preparation of supramolecular cage complex {[Zn 4 (μ 4 -H 2 O)(TBSC)] 4 [DC] 8}

[0075] (where TBSC stands for 5,11,17,23-tetra-tert-butyl-sulfonyl bridged calix[4]arene ligand, DC stands for 5-(pyrenyl-1-methyl)aminoisophthalic acid ligand)

[0076] Take Zn(NO 3 ) 2 ·6H 2 O (74.50mg, 0.25mmol), 5-(pyrenyl-1-methyl)aminoisophthalic acid (67.50mg, 0.17mmol) and H 4 TBSC (42.50 mg, 0.05 mmol) was dissolved in 5 mL of N,N'-dimethylformamide (DMF) and 4 mL of methanol mixed solvent, heated to 100 °C at a heating rate of 0.5 °C / min, and the temperature was maintained at 100 After reacting at ℃ for 24 hours, the temperature was lowered slowly to obtain yellow crystals. Yield: 75%.

[0077] The product is characterized by X-ray single crystal diffraction:

[0078] Table 2. {[Zn 4 (μ 4 -H 2 O)(TBSC)] 4 [DC] 8} crystallographic parameters

[0079]

[0080] Above-mentioned data shows that present embodiment has obtained target product {[Zn 4 (μ 4 -H 2 O)(T...

Embodiment 1

[0082] The interaction of the supramolecular cage complex prepared in Preparation Example 1 with acid and base in chloroform solution was investigated. The concentration of the supramolecular cage complex is 6×10 -6 M, the concentrations of trifluoroacetic acid and triethylamine were 6×10 -3 M. Detect its fluorescence emission intensity, the fluorescence emission excitation wavelength is 366nm, the result is as follows figure 2 shown.

[0083] figure 2 It is the fluorescence emission spectrum of the chloroform solution of the supramolecular cage complex of Example 1 of the present invention under acid and alkali conditions. Depend on figure 2 It can be seen that the maximum absorption peak intensity of the supramolecular cage complex in Example 1 will be greatly enhanced under acidic conditions, while the fluorescence will be quenched under alkaline conditions. Moreover, the acid-base regulated fluorescent switching process is completely reversible and can be cycled m...

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Abstract

The invention discloses a supermolecule cage complex as well as a preparation method and an application thereof. The structure of the supermolecule cage complex is {[M4(mu4-H2O)(x)]4Y8}, in the formula, M is a metal element; X is thiacalixarene [4] ligand; and Y is carboxylate ligand. Implemented under relatively gentle conditions, the preparation method of the supermolecule cage complex is not only simple and rapid, but also energy-saving and efficient, raw materials and reagents are wide in source and low in price, and large-scale application is facilitated. The supermolecule cage complex disclosed by the invention is subjected to fluorescence enhancement under an acid condition, subjected to fluorescence quenching under an alkali condition, and can be applied to pH value analysis in an organic environment (not aqueous solution). The supermolecule cage complex disclosed by the invention can be applied to a spectrum sensation aryl aldehyde compound, and a provided fluorescence spectrum sensation detection method has the advantages of being high in sensitivity, rapid in response and the like.

Description

technical field [0001] The invention belongs to the technical field of supramolecular cage complex materials, and in particular relates to a supramolecular cage complex and its preparation method and application. Background technique [0002] Supramolecules with specific cavity structures can be used as molecular containers to selectively bind or contain guest molecules with specific sizes, configurations and functional groups. This kind of supramolecule utilizes the host-guest inclusion effect to provide a special chemical microenvironment for the contained guest molecules, which can be applied to encapsulate unstable compounds, store, separate and transport small molecular compounds, template synthesis of monodisperse nanoparticles, and drugs Transmission, etc., so it has been widely concerned by scientific researchers. [0003] As an important research hotspot, discrete coordination supramolecular cage compounds with high controllability and rigid metal-ligand bonding ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/06C07F3/06C09K11/06G01N21/64
CPCC07B2200/13C07F3/003C07F15/065C09K11/06C09K2211/187C09K2211/188G01N21/64
Inventor 戴枫荣王金云孙成哲陈忠宁
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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