Chiral Au(Ⅰ) complex with excitation wavelength-dependent phosphorescence and induced chiral liquid crystal formation

IF 4.2 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-09-25 DOI:10.1016/j.dyepig.2025.113278

Debin Fu , Shanting Liu , Yang Wang, Xiaofei Yang, Sheng Hua Liu

引用次数: 0

Abstract

A series of chiral Au(I) complexes (S)/(R)-1 to (S)/(R)-3 with aggregation-induced emission enhancement (AIEE) properties were designed and synthesized. Among them, (S)-2 and (R)-2 exhibited unique excitation-wavelength-dependent (Ex-De) phosphorescent emission in the powder state. The emission color could be linearly tuned simply by adjusting the excitation wavelength. When these complexes were doped into the achiral liquid crystal (LC) 5CB, they could induce the formation of chiral LCs. The co-assembled LCs showed enhanced chiroptical properties, which generated high-intensity circularly polarized luminescence (CPL) signals, and the |g_lum| could reach up to 0.4. This research provided new ideas for the development of chiral Au(I) complexes with Ex-De phosphorescent emission and efficient CPL LC induction ability.

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具有激发波长依赖性磷光的手性Au（Ⅰ）配合物和诱导手性液晶的形成

设计并合成了一系列具有聚集诱导发射增强（AIEE）性能的手性Au(I)配合物(S)/(R)-1 ~ (S)/(R)-3。其中(S)-2和(R)-2在粉末状态下表现出独特的激发波长依赖（Ex-De）磷光发射。通过调整激发波长，可以对发射颜色进行线性调节。当这些配合物掺杂到非手性液晶（LC） 5CB中时，它们可以诱导手性液晶的形成。共组装后的lc具有增强的光致性，可产生高强度的圆偏振发光（CPL）信号，|glum|可达0.4。本研究为开发具有前de磷光发射和高效CPL - LC诱导能力的手性Au(I)配合物提供了新的思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.