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

被引：0

作者：

Lei, Wei ^{[1
]}

Chen, Siyuan ^{[1
]}

Zeng, Yan ^{[1
]}

Wang, Xuewen ^{[1
]}

Luo, Qianfu ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Sch Chem & Mol Engn, Dept Chem, Shanghai 200237, Peoples R China

来源：

DYES AND PIGMENTS | 2025年 / 239卷

关键词：

Z isomerization; Tricolor photochromism; Photo-gated thermal reversibility; AGGREGATION-INDUCED EMISSION; STEPWISE PHOTOCHROMISM; RUTHENIUM COMPLEX; MULTIPHOTOCHROMISM; DERIVATIVES;

D O I：

10.1016/j.dyepig.2025.112766

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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.

引用

页数：7