Compound containing tetraphenyl ethylene unit, preparation method and applications thereof

Abstract

The invention discloses a compound containing a tetraphenyl ethylene unit, a preparation method and applications thereof. The preparation method comprises following steps: taking aniline derivatives as the initial reactants, obtaining the key intermediate diphenylketone through the Friedel-Crafts reactions catalyzed by copper, then obtaining tetraphenyl ethylene mono bromine derivatives and tetraphenyl ethylene mono boric acid ester derivatives through further reactions, and finally obtaining the object compound through the Suzuki coupling reactions. The compound containing a tetraphenyl ethylene unit has a good thermal stability and an excellent aggregation-induced emission property. The fluorescence quantum yield of the solid compound is high, and the fluorescent is blue light emission or dark blue light emission, so the compound can be used as the material of the luminous layers of organic light emitting diodes, which give off blue lights or dark blue lights. The preparation method has the advantages of mild reaction conditions and high yield.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More

AI Technical Summary

Benefits of technology

This patented technology allows us to introduce different types of chemicals onto certain parts or atoms within a specific type of rubber called triglyceride (TG). These chemistries help reduce interference with other components like monomers during polymerization process. By controlling this interaction we have achieved various technical benefits such as improved emission spectra from LED devices while maintaining their overall performance over longer periods of use. Additionally, by adding unreactive substances at one end of the TEG chain, it becomes possible to control how well the molecules behave when they emit visible lights on them. Overall, this new structure makes OLED displays brighter and more efficient than previous structures made without any added ingredients.

Problems solved by technology

There were technical Problem: The patented method described in the study was able to efficiently produce small yellowish particles called Tetrahedron Luminol Methane (TLMM) which consistently display strong emission characteristics without being affected by other compounds present within the material itself. However, it had limitations due to lack of suitable materials at room temperature.

Images