Compounds with AIE properties and their preparation methods and applications

A compound and characteristic technology, applied in the field of color-changing materials, can solve the problem of limited number of compounds, and achieve the effects of simple synthesis method, material saving and fluorescence enhancement

Active Publication Date: 2022-05-31
江苏萨瑞斯医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the number of compounds that have both aggregation-induced luminescence and mechanochromic properties have been reported is relatively limited.

Method used

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  • Compounds with AIE properties and their preparation methods and applications
  • Compounds with AIE properties and their preparation methods and applications
  • Compounds with AIE properties and their preparation methods and applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 1. Synthesis of bis(4-benzoyl)aniline

[0055] Take 15.5 mL of anhydrous N,N-dimethylformamide (DMF) in an ice-water bath to below 0 °C, add 15.5 mL of phosphorus oxychloride dropwise, stir at room temperature for 40 min, add 2.0 g of triphenylamine and heat the mixture to 95 °C, stirring for 14 hours. After the reaction was completed, the reactant was cooled to room temperature, poured into ice water, then adjusted to neutrality with sodium hydroxide, stirred at room temperature for 2 hours, extracted with dichloromethane, dried over anhydrous magnesium sulfate, concentrated and separated by silica gel column chromatography A white powder was obtained, yield: 90%.

[0056] 1 H-NMR (DMSO, 400MHz) δ(ppm): 9.87(s, 2H), 7.84(d, 4H), 7.47(t, 2H), 7.31(s, 1H), 7.21(d, 2H), 7.16( d,4H).

[0057] 2. Synthesis of compound 1

[0058] 1 mmol of bis(4-benzoyl)aniline and 2 mmol of 4-benzoylhydrazide were added to the flask, followed by 6 ml of ethanol and 1 to 2 drops of glac...

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Abstract

The invention discloses a compound with AIE and mechanochromic properties. The compound is prepared by reacting bis(4-benzoyl)aniline and 4-fluorobenzoic hydrazide in the presence of a solvent and a catalyst, 60-80 It was prepared by stirring and refluxing at ℃ for 3-6 hours. The invention also discloses the preparation method and application of the compound. The compound with aggregation-induced luminescence and mechanochromic properties of the present invention has a simple synthesis method, the target product is directly precipitated in the reaction process, no further complicated purification steps are required, the synthesis is green and environmentally friendly, and materials are saved.

Description

technical field [0001] The invention relates to the technical field of color-changing materials, in particular to a compound having both aggregation-induced luminescence and mechanochromic properties, a preparation method and application thereof. Background technique [0002] The phenomenon of Aggregation Induce Emission (AIE) was proposed by Tang Benzhong's research group in 2001. Traditional fluorescent materials usually emit strong light in solution, but weak or even no light in solid state or aggregated state. This aggregation-induced luminescence quenching phenomenon greatly limits the use of fluorescent materials. However, the luminescence of AIE materials is weak in solution, and the luminescence is significantly enhanced in aggregated or solid state. This AIE-type material can be widely used in many aspects, especially in solar cells, OLEDs, biosensors, and multiple stimuli-responsive materials. [0003] When some materials are subjected to certain external stimuli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C249/16C07C251/86C09K9/02C09K11/06
CPCC07C249/16C07C251/86C09K9/02C09K11/06C09K2211/1007C09K2211/1014
Inventor 周为群
Owner 江苏萨瑞斯医疗科技有限公司
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