一种三色光致变色杂化四芳烯，具有99%的E-Z异构化和光环化/环还原

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-03-17 DOI:10.1016/j.dyepig.2025.112766

Wei Lei, Siyuan Chen, Yan Zeng, Xuewen Wang, Qianfu Luo

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引用次数: 0

摘要

我们提出了一种创新的三色光致变色开关的合理设计和合成，该开关具有独特的分子结构，结合了e -四芳烯核和双二苯甲酮基团。该系统表现出优异的双向光响应行为，在四氢呋喃溶液中实现了近定量的E-Z异构化（产率>；99%）和高效的光诱导环化/环还原反应。这种复杂的光致变色相互作用可以通过受控的光照射实现精确的三色调制。值得注意的是，该系统表现出光调节的热可逆性，对其弛豫动力学提供了前所未有的控制。在不同的基质中，包括PMMA聚合物薄膜和纤维素滤纸基质，光致变色性能仍然稳定。这种多寻址的颜色切换平台在先进的光学应用中，特别是在动态信息加密系统和多层次防伪技术中显示出了巨大的潜力。

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A tricolor photochromic hybrid tetra-arylethene with > 99 % E-Z isomerization and photocyclization/cycloreversion

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A tricolor photochromic hybrid tetra-arylethene with > 99 % E-Z isomerization and photocyclization/cycloreversion

We present the rational design and synthesis of an innovative tricolor photochromic switch featuring a unique molecular architecture combining an E-tetra-arylethene core with dual benzophenone moieties. The system demonstrates exceptional bidirectional photoresponsive behavior, achieving near-quantitative E-Z isomerization (yields >99%) and efficient photoinduced cyclization/cycloreversion reactions in tetrahydrofuran solution. This sophisticated photochromic interplay enables precise tricolor modulation through controlled light irradiation. Notably, the system exhibits light-regulated thermal reversibility, offering unprecedented control over its relaxation dynamics. The photochromic performance remains robust across different matrices, including PMMA polymer films and cellulose filter paper substrates. This multi-addressable color-switching platform demonstrates promising potential for advanced optical applications, particularly in dynamic information encryption systems and multi-level anti-counterfeiting technologies.

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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.