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Fluorescent probe based on trans-cucurbit[7]uril, and preparation method and application thereof

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

Active Publication Date: 2017-06-30
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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  • Fluorescent probe based on trans-cucurbit[7]uril, and preparation method and application thereof
  • Fluorescent probe based on trans-cucurbit[7]uril, and preparation method and application thereof
  • Fluorescent probe based on trans-cucurbit[7]uril, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1. A fluorescent probe based on a trans seven-membered melon 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 melon ring is prepared according to the following steps: add iQ[7] and DASPM to distilled water and mix, heat to 45-55°C for reaction after mixing, cool down after the reaction is complete, and obtain the described fluorescent probes.

[0028] The aforementioned fluorescent probe based on the trans seven-membered melon ring was prepared according to the following steps: mix iQ[7] and DASPMI at a molar ratio of 1:1, and add distilled water to configure (1.0-2.0)×10 -4 mol L -1 The mixed solution was stirred and reacted at 45-55° C. for 2 h, and an orange-red liquid was obtained after cooling to ro...

Embodiment 2

[0034] Example 2. A fluorescent probe based on a trans seven-membered melon 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 , the structural formula is as figure 1 .

[0036] The aforementioned fluorescent probe based on the trans seven-membered melon ring was prepared according to the following steps: Weigh the trans seven-membered melon ring iQ[7] and DASPMI at a molar ratio of 1:1, add distilled water, and configure 2.00× 10 -4 mol L -1 The fluorescent probe solution was stirred and reacted at 45-55°C for 2h. Cool to room temperature to obtain an orange-red liquid, which is the fluorescent probe.

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

[0038] (1) Standard solution o...

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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 fields of organic synthesis and analytical chemistry, in particular to a fluorescent probe based on a trans seven-membered melon ring, a preparation method and an application. Background technique [0002] Cucurbit[n]uril, also known as cucurbit[n]uril (Q[n] or CB[n] for short), as a new type of macrocyclic compound, is named for its structure that looks like a pumpkin and is a ring. A new class of macrocycles formed by methylene bridging. The trans seven-membered cucurbit (i.e. iQ[7]) has an inverted glycoside urea unit, making the cavity smaller compared to the seven-membered cucurbit. Because of its inner hydrophobic outer hydrophilic cavity and the port composed of surrounding carbonyl oxygen atoms, the melon ring can bond a variety of cationic guests and neutrals through non-covalent bonds such as hydrophobic interactions, hydrogen bonds, and ionic dipoles. The supramolecular self-assembled structures formed by molec...

Claims

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Application Information

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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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