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Materials with chiroptical properties

A selected and independent technology, applied in the field of new materials with chiral optical activity, can solve the problems of limited research and development, low efficiency of chiral AIE materials, etc., and achieve the effect of strong chiral characteristics

Active Publication Date: 2019-09-10
THE HONG KONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, once these monochiral TPE crystals are dissolved in their good solvents, they tend to rapidly racemize due to intramolecular motions, and the crystallization process has not been studied much, and the preparation of chiral AIE by this method The material efficiency is very low, which limits its further research and development

Method used

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  • Materials with chiroptical properties
  • Materials with chiroptical properties
  • Materials with chiroptical properties

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Embodiment Construction

[0107] The invention provides chiral AIE materials and methods for their preparation and use. The chiral AIE materials provided herein may comprise achiral compounds, which generally do not exhibit chiral properties, such as circular dichroism.

[0108] definition

[0109]Definitions of terms used herein are meant to include definitions currently accepted in the fields of chemistry and semiconductors. Examples are provided where appropriate. These definitions apply to terms used throughout this specification, unless otherwise limited in specific instances individually or as part of a larger group.

[0110] The term "heteroatom" is recognized to mean an atom of any element other than carbon or hydrogen. Exemplary heteroatoms include boron, nitrogen, oxygen, phosphorus, sulfur and selenium.

[0111] The term "alkyl" is art recognized and includes saturated aliphatic groups including straight chain alkyl, branched chain alkyl, cycloalkyl (cycloaliphatic), alkyl substituted cy...

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Abstract

The present invention relates to materials with strong circular dichroism (CD), circularly polarized luminescence (CPL), and high fluorescence quantum yield in the aggregate state and methods of preparation and use thereof.

Description

[0001] cross application [0002] This application claims priority to U.S. Provisional Patent Application Serial No. 62 / 499,22, filed January 26, 2017, which is incorporated in its entirety by this application. technical field [0003] The invention relates to the preparation and use of materials with strong circular dichroism (CD), circularly polarized fluorescence (CPL) and high fluorescence quantum yield in an aggregated state. Background technique [0004] Aggregation-quenched fluorescence (ACQ) refers to molecules that have strong fluorescence emission in dilute solution, but the emission weakens or disappears in thin film or solid state. This is a common phenomenon in traditional organic molecules. This phenomenon hinders the use of the material in solid-state conditions, for example in the field of organic light-emitting diodes. [0005] In 2001, luminescent materials with aggregation-induced emission (AIE) properties were described for the first time and have attr...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07C43/215C07C217/64C07C211/27H01L51/50H01L51/54
CPCC07C15/14C07C15/52C09K11/06H10K85/60H10K50/868
Inventor 唐本忠张浩可
Owner THE HONG KONG UNIV OF SCI & TECH
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