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Method for assembling and preparing novel organic solid fluorescent material by cucurbituril anions

A technology of organic solids and fluorescent materials, applied in the directions of luminescent materials, chemical instruments and methods, etc., can solve the problems of quenching, luminous intensity attenuation, limiting the application scope of organic luminescent materials, etc., and achieves high yield, simple preparation method, huge The effect of applying value

Inactive Publication Date: 2015-11-18
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic light-emitting materials are widely used in the fields of display devices and sensors, but when many organic light-emitting materials are made into solid devices, the luminous intensity attenuation or even quenching occurs due to molecular aggregation, which greatly limits the application range of organic light-emitting materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 200 mg of CB[6] and 11.570 g of 1,5-naphthalenedisulfonic acid into 20 mL of deionized water, mix well, and heat under reflux in an oil bath at 80°C for 3 hours. All the solid powders are dissolved, and the reaction solution is brown and transparent. The reaction solution was filtered while hot, and the filtrate was cooled to room temperature, placed in a refrigerator for 4-7 days, and 180 mg of transparent crystals were collected. The fluorescence emission peak of the assembly is 340nm by solid fluorescence spectrum scanning.

Embodiment 2

[0019] Add 200mg CB[6], 2.872g 5-sulfosalicylic acid, and 5mL deionized water to a 10mL reaction kettle, react in an oil bath at 100°C for 2h, filter while hot, cool the filtrate to room temperature, put it in the refrigerator for refrigeration, and filter it with suction. Collect clear crystals. The fluorescence emission peak of the assembly was 443 nm by solid fluorescence spectrum scanning.

Embodiment 3

[0021] 758mg of CB[5] and 4.384g of 1,5-naphthalenedisulfonic acid were added to 15.2mL of deionized water, mixed evenly, heated to reflux in an oil bath at 80°C for 3h, the solid powder was completely dissolved, and the reaction solution was yellow and transparent. The reaction solution was filtered while hot, and the filtrate was cooled to room temperature, placed in a refrigerator for 4-7 days, and 878 mg of crystals were collected. The fluorescence emission peak of the assembly is 340nm by solid fluorescence spectrum scanning.

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Abstract

The present invention discloses a method for assembling and preparing novel organic solid fluorescent material by cucurbituril anions, and belongs to the field of organic luminous materials. According to the method, macrocycle host compound cucurbituril is introduced into a specific organic fluorescent compound solution system; and by virtue of unique molecular recognition and assembly properties of the cucurbituril, the macrocycle host compound cucurbituril and a fluorescent functional compound form an anion assembly. The method can change a deposition mode of fluorescent molecules and perform effective controllable adjustment on fluorescent wavelength of the original fluorescence organic by the anion assembly, and even organic compounds that do not have the fluorescence property originally have the fluorescence property after being assembled with the cucurbituril anion. The method is simple in preparation method, and the obtained solid fluorescent material is high in yield rate and has the advantage of being capable of performing designing and modulating on a target fluorescence emission wavelength; and the method has a potential application value in various field such as color displays, anti-counterfeit marks, fluorescence sensors, molecular machines and the like.

Description

technical field [0001] The invention belongs to the field of organic light-emitting materials, and particularly relates to a method for preparing a novel organic solid fluorescent material by anion assembly of cucurbituril. Background technique [0002] Compared with inorganic solid light-emitting materials, organic solid light-emitting materials have many advantages, such as higher molar extinction coefficient in the visible light region, larger Stokes shift, strong modifiability, and a wide variety, etc. Therefore, organic solid light-emitting materials are widely used in There are important applications in many fields, such as organic light-emitting diodes (OLEDs), organic light-emitting field-effect transistors (OLEFETs), organic solid-state lasers, and organic fluorescent sensors. How to easily and conveniently convert organic compounds in common solutions into solid fluorescent materials, and effectively adjust and switch the fluorescence of organic solid fluorescent m...

Claims

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Application Information

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IPC IPC(8): C08G83/00C09K11/06
Inventor 刘莉张雪芳
Owner DALIAN UNIV OF TECH
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