A phenyl(triphenylene-2-yl)methanone derivative having room temperature phosphorescence, and a preparation method and application thereof

By designing phenyl(triphenyl-2-yl)methyl ketone derivatives to enhance intermolecular interactions, the problem of reduced luminescence in pure organic room temperature phosphorescent materials during crystallization destruction was solved, achieving stable luminescence under various conditions and expanding application potential.

CN117586113BActive Publication Date: 2026-06-30SUN YAT SEN UNIV
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Patent Information

Application Number
CN202311565664.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-22
Publication Date
2026-06-30
Estimated Expiration
2043-11-22

AI Technical Summary

Technical Problem

When the crystal structure of existing pure organic room temperature phosphorescent materials is disrupted, the intermolecular interactions and oxygen barrier capabilities are weakened, resulting in reduced or absent luminescence, which limits their application range.

Method used

We designed and synthesized phenyl (triphenyl-2-yl) methyl ketone derivatives, which enhanced intermolecular interactions in crystalline, amorphous, nanoparticle, and polymer states through the intermolecular interactions between triphenyl and carbonyl groups, stabilized triplet excitons, and blocked oxygen and water quenching.

Benefits of technology

Even if the crystal is destroyed, the derivative can still maintain strong intermolecular interactions, stabilize triplet excitons, block oxygen and water quenching, and ensure effective emission of room temperature phosphorescence under different conditions, thus broadening the range of applications.

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Abstract

This invention belongs to the technical field of pure organic small molecule room-temperature phosphorescent materials, specifically relating to a phenyl(triphenyl-2-yl) methyl ketone derivative exhibiting room-temperature phosphorescence, its preparation method, and its applications. To develop a pure organic RTP material with strong intermolecular interactions and the ability to block oxygen and water quenching, this invention designs and synthesizes a series of phenyl(triphenyl-2-yl) methyl ketone derivatives with strong intermolecular interactions. Even when crystallization is disrupted, these derivatives can maintain strong intermolecular interactions to stabilize the TT. n It also blocks the quenching of oxygen and water to a certain extent, so that it can easily emit room temperature phosphorescence regardless of whether it is in the crystalline, amorphous, nanoparticle or polymer state, which is more conducive to its production and application.
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