A fluorescent probe, preparation method and application based on trans seven-membered melon ring

A technology of fluorescent probe and seven-membered melon ring, which is applied in fluorescence/phosphorescence, chemical instruments and methods, luminescent materials, etc., to achieve the effect of simple operation method, superior selectivity and high sensitivity

Active Publication Date: 2019-08-02
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the supramolecular system of trans-7-membered cucurbit ring-phosphor as a molecular probe

Method used

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  • A fluorescent probe, preparation method and application based on trans seven-membered melon ring
  • A fluorescent probe, preparation method and application based on trans seven-membered melon ring
  • A fluorescent probe, preparation method and application based on trans seven-membered melon ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1. A fluorescent probe based on the trans seven-membered cucurbit ring, including iQ[7] and

[0025] DASPM synthesizes a self-assembled complex with a molar ratio of 1:1, and the molecular formula of the self-assembled complex is C 58 H 61 N 30 O 14 , The structural formula is:

[0026]

[0027] The aforementioned fluorescent probe based on the trans seven-membered cucurbit ring was prepared as follows: iQ[7] and DASPM were mixed with distilled water, mixed and heated to 45-55°C for reaction, and after the reaction was completed, the temperature was lowered to prepare the Fluorescent probe.

[0028] The aforementioned fluorescent probe based on the trans seven-membered cucurbital ring was prepared as follows: iQ[7] and DASPMI were mixed in a molar ratio of 1:1, and distilled water was added to prepare (1.0-2.0)×10 -4 mol·L -1 The mixed solution is stirred at 45-55°C for 2h, and is cooled to room temperature to obtain an orange-red liquid, that is, the fluorescent prob...

Embodiment 2

[0034] Example 2. A fluorescent probe based on the trans seven-membered cucurbit ring, including iQ[7] and

[0035] DASPM synthesizes a self-assembled complex with a molar ratio of 1:1, and the molecular formula of the self-assembled complex is C 58 H 61 N 30 O 14 , Structural formula such as figure 1 .

[0036] The aforementioned fluorescent probe based on the trans seven-membered cucurbital ring was prepared as follows: Weigh the trans seven-membered cucurbital ring iQ[7] and DASPMI in a molar ratio of 1:1, add distilled water, and configure 2.00× 10 -4 mol·L -1 The fluorescent probe solution was stirred at 45~55℃ for 2h. Cool to room temperature to obtain orange-red liquid, which is the fluorescent probe.

[0037] The aforementioned fluorescent probe based on the trans seven-membered cucurbital ring is used for the recognition and detection of xylylenediamine molecules. The specific detection is as follows:

[0038] (1) Standard solution of p-xylylenediamine: Weigh 0.2mmol (27....

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PUM

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Abstract

The invention discloses a fluorescent probe based on trans-cucurbit[7]uril, and a preparation method and an application thereof. The fluorescent probe includes a self-assembly complex with the iQ[7] and DASPM synthesis molar ratio of 1:1, and the self-assembly complex has the molecular formula of C58H61N30O14 and has the structural formula defined in the specification. The fluorescent probe has the characteristics of high-sensitivity and high-selectivity recognition of p-xylylenediamine molecules.

Description

Technical field [0001] The invention relates to the field of organic synthesis and analytical chemistry, in particular to a fluorescent probe based on a trans seven-membered cucurbit ring, a preparation method and an application. Background technique [0002] Cucurbituril, also known as Cucurbit[n]uril (Q[n] or CB[n] for short), is a new type of macrocyclic compound. It is named after its structure looks like a pumpkin but is also a cyclic compound. A new type of macrocyclic compound formed by methylene bridge. The trans seven-membered citrulline (iQ[7]) has an inverted glycoside unit, making the cavity smaller than the seven-membered citrulline. Due to its internal hydrophobic and external hydrophilic cavity and a port composed of surrounding carbonyl oxygen atoms, the citrullus ring can bond a variety of cationic guests and neutrality through non-covalent bonds such as hydrophobic interaction, hydrogen bonding, and ionic dipole. The supramolecular self-assembly structure form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06C07D487/22C07D213/38G01N21/64
CPCC07D213/38C07D487/22C09K11/06C09K2211/1029C09K2211/1074G01N21/643
Inventor 肖昕高中政张静白东陶朱
Owner GUIZHOU UNIV
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