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A diphenylanthracene co-crystal material with electrochemiluminescent properties and its preparation method

A technology of luminescence characteristics, diphenylanthracene, applied in series 9 fields, can solve problems such as weak signal, unfavorable solid-state ECL application, limited detection, etc., to achieve the effect of optimizing electrochemiluminescence performance, broadening the scope of preparation, and broadening the application space

Active Publication Date: 2017-06-30
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in terms of electrochemiluminescence, 9,10-diphenylanthracene is mainly used in the three-electrode system in the solution state, which limits its application in detection and other aspects. At the same time, the ECL signal of its solid-state material is weak, which is not conducive to its solid-state ECL application

Method used

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  • A diphenylanthracene co-crystal material with electrochemiluminescent properties and its preparation method
  • A diphenylanthracene co-crystal material with electrochemiluminescent properties and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Weigh 0.0664g of 9,10-diphenylanthracene and 0.0544g of 1,4-dibromotetrafluorobenzene;

[0026] 2) Mix the two evenly, put them into a ball mill (Leicher, Germany, MM200), add 0.5ml of chloroform, and grind for 30min at 20r / s;

[0027] 3) Dissolve about 0.1 g of the ground powder in 15 ml of chloroform, place it at room temperature, and wait for the solvent to evaporate to obtain a single crystal product.

[0028] To characterize the product:

[0029] The crystal powder of the product was tested by PXRD, and the diffraction pattern showed that the target product was synthesized;

[0030] Single crystal X-ray diffraction analysis of the single crystal product shows that 9,10-diphenylanthracene and 1,4-dibromotetrafluorobenzene are bonded together through intermolecular hydrogen bonds to form a new crystal structure;

[0031] Using a three-electrode system, use potassium dihydrogen phosphate of pH=7.4 as a buffer to test the electrochemiluminescence intensity, showin...

Embodiment 2

[0033] 1) Weigh 0.0664g 9,10-diphenylanthracene and 0.0544g 44`-dibromooctafluorobiphenyl;

[0034] 2) Mix the two evenly, put them into a ball mill (Leicher, Germany, MM200), add 0.5ml of chloroform, and grind for 30min at 20r / s;

[0035] 3) Dissolve about 0.1 g of the ground powder in 10 ml of chloroform, place it at room temperature, and wait for the solvent to evaporate to obtain a single crystal product.

[0036] To characterize the product:

[0037] The powder of the product was tested by PXRD, and the diffraction pattern showed that the target product was synthesized;

[0038] The single crystal X-ray diffraction analysis of the single crystal product shows that 9,10-diphenylanthracene and 44`-dibromooctafluorobiphenyl are combined through intermolecular hydrogen bonds to form a new crystal structure;

[0039] Using a three-electrode system, use potassium dihydrogen phosphate of pH=7.4 as a buffer to test the electrochemiluminescence intensity, showing that the cocrys...

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Abstract

The invention discloses a cocrystallization compound with solid electrochemiluminescence characteristics by using 9,10-diphenyl anthracene as a host and a preparation method thereof, belonging to the field of molecular materials. 9,10-diphenyl anthracene selected as the host and a series of organic micromolecule compounds with hydroxyl, carboxyl and other groups, halogeno-benzene or the like used as the object are subjected to host and guest identification and cocrystallization under the intermolecular interaction force to obtain the novel crystalline compound. The invention is characterized in that the synthesized 9,10-diphenyl anthracene cocrystallization compound has excellent photoluminescence and electrochemiluminescence characteristics. The cocrystallization material can be obtained by solvent volatilization, mechanochemical synthesis or other methods, and the process is simple and convenient. The solid electrochemical luminescence properties of the synthesized material are greatly enhanced as compared with the 9,10-diphenyl anthracene host. The compound has certain application prospects in the fields of fluorescent sensors, photoelectric device manufacturing, optical anti-counterfeiting materials and the like.

Description

technical field [0001] The invention belongs to the field of molecular materials, and provides a new design idea and feasible scheme for the preparation of novel solid-state electrochemiluminescent materials, in particular, it provides a preparation method for a series of 9,10-diphenylanthracene multi-component crystalline compounds. Background technique [0002] Electrochemiluminescence (ECL) is a phenomenon of light radiation caused by the chemical reaction between the electrode reaction products or between the electrode reaction products and a certain component in the solution by applying a voltage on the electrode surface, and the excited state molecules produced return to the ground state. Compared with photoluminescence (photoluminescence, PL), ECL has unique advantages as an analysis technique. First, ECL does not involve a light source, so the problems of light dispersion and EL lamp impurity in photoluminescence can be effectively avoided. , which improves the high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06C07C7/14C07C15/28C07C17/392C07C25/13C07C25/18
Inventor 闫东鹏范国凌
Owner BEIJING NORMAL UNIVERSITY
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