Compound, preparation method thereof and application of compound in uranium analysis

A technology for compounds and detection methods, applied in chemical instruments and methods, analytical materials, material excitation analysis, etc., to achieve the effect of simple processing and simple implementation

Inactive Publication Date: 2018-09-21
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the research in this area has not been reported in the literature so far, so this article will carry out the research in this area

Method used

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  • Compound, preparation method thereof and application of compound in uranium analysis
  • Compound, preparation method thereof and application of compound in uranium analysis
  • Compound, preparation method thereof and application of compound in uranium analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The present embodiment provides a compound (polydentate macrocyclic ligand H 4 L).

[0055] Its chemical structural formula is as follows:

[0056]

[0057] figure 1 Ligand H described in this example 4 The infrared spectrum of L, in figure 1 Among them, there are at 3346.71cm -1 Absorption attribution δ N-H The vibration of 3197cm -1 The left and right absorption peaks belong to the stretching vibration peaks of C-H on the pyrrole ring and benzene ring, and the compound is at 1649.57cm -1 There is a stretching vibration peak of benzene ring C=C, at 1587.48cm -1 The absorption at is attributed to the δ on the pyrrole ring C-H vibration at 1055cm -1 、677.45cm -1 The absorption bands appearing everywhere can be attributed to the meta-substitution absorption peak on the benzene ring.

[0058] figure 2 Ligand H described in this example 4 UV spectra of L and uranyl complexes, in figure 2 Among them, there is a characteristic absorption peak on the benzene...

Embodiment 2

[0062] The present embodiment provides a compound (polydentate macrocyclic ligand H 4 L) and preparation method thereof, its preparation method is as follows:

[0063] Add 0.81 g of phenylenedipyrrole formaldehyde and 0.35 g of o-phenylenediamine into 100 ml of DCM / MeOH (DCM / MeOH=10:1) solution, drop 2 drops of TFA, the color gradually deepens and turns brown. The reaction solution was stirred overnight, the solvent was spin-dried under reduced pressure, methanol was added, ultrasonicated, filtered, washed with methanol, and dried to obtain the macrocyclic ligand (H 4 L).

[0064] Get the obtained macrocyclic ligand (H 4 L) Characterize according to the same conditions as in Example 1, and its characterization information is the same as in Example 1.

Embodiment 3

[0066] This embodiment provides a multidentate macrocyclic ligand H 4 L and its preparation method, the preparation method is as follows: 0.8g of phenylenedipyrrole formaldehyde and 0.43g of o-phenylenediamine are added to 100ml of DCM / MeOH (DCM / MeOH=10:1.5) solution, 2 drops of TFA are added dropwise, The color gradually deepens to brown. The reaction solution was stirred overnight, the solvent was spin-dried under reduced pressure, methanol was added, ultrasonicated, filtered, washed with methanol, and dried to obtain the macrocyclic ligand (H 4 L).

[0067] Get the obtained macrocyclic ligand (H 4 L) Characterize according to the same conditions as in Example 1, and its characterization information is the same as in Example 1.

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Abstract

The invention relates to a compound, a preparation method thereof and application of the compound in uranium analysis. A structural formula of the compound is shown as a formula I. The preparation method of the compound includes the steps of adding benzodipyrrole carboxaldehyde and o-phenylenediamine into a dichloromethane / methanol solution, dropwise adding trifluoroacetic acid, and then obtainingthe compound, wherein the equivalence ratio of benzodipyrrole carboxaldehyde to o-phenylenediamine is 1:(0.8-1.5). The compound can be combined with uranyl and europium to form a dinuclear complex with strong resonance fluorescence. Since the strong resonance fluorescence can be generated due to positive ion-positive ion interaction when uranyl gets close to europium, the compound can be used forquantitative detection analysis of uranium. The formula I is shown in the description.

Description

technical field [0001] The invention relates to the synthesis of organic compounds, in particular to a compound, its preparation method and its application in uranium analysis. Background technique [0002] The detection of uranium plays a vital role in national defense security, nuclear energy development and environmental protection. Fluorescence analysis is currently one of the most commonly used methods for detecting uranium. However, the fluorescence of uranium itself is very weak, and high-intensity lasers or X-rays are generally used as light sources for detection. Therefore, it is of great value to study the uranium fluorescence analysis method which does not use laser and X-ray but still has high sensitivity. The cation–cation interactions (CCIs) between uranyl ions and other cations have attracted much attention in recent years. CCIs enable energy transfer, charge transfer and other processes between uranyl and cations, so that related uranium-containing substan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/22C09K11/06G01N21/64
CPCC07D487/22C09K11/06C09K2211/1074G01N21/643
Inventor 肖锡林王娇廖力夫蒋敏彭鹏程
Owner NANHUA UNIV
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