超分子化学
汞菁
超分子组装
光化学
荧光
材料科学
螺吡喃
罗丹明B
两亲性
罗丹明
费斯特共振能量转移
自组装
戒指(化学)
接受者
光致变色
结晶学
化学
纳米技术
共聚物
晶体结构
光催化
有机化学
物理
聚合物
量子力学
复合材料
凝聚态物理
催化作用
作者
Rong Zhang,Yong Chen,Lei Chen,Yi Zhang,Yu Liu
标识
DOI:10.1002/adom.202300101
摘要
Abstract Photoacid sulfonato‐merocyanine (MEH) serving as a photoisomer is added in mixed solution of amphiphilic calix[4]arene (SC4A8) and tetra‐(4‐pyridylphenyl) ethylene (TPE‐4Py), which not only activates the in situ supramolecular self‐assembly or disassembly, but also regulates two kinds of fluorescence emission. Benefiting from that MEH releases protons and becomes a ring‐closed isomer spiropyran (SP) under 420 nm irradiation, TPE‐4Py is protonated and then assembled with SC4A8 to form a supramolecular assembly with yellow fluorescence at 540 nm via electrostatic interactions. In the dark, SP changes to ring‐opened MEH, realizing a spontaneous disassembly accompanied by fluorescence emission at 495 nm, and thus, a photo‐activated reversible in situ supramolecular system is obtained successfully. Furthermore, Rhodamine B (RhB) acting as an energy acceptor is doped in the ternary supramolecular assembly, enabling the efficient energy transfer by the light irradiation. The formed tunable multicolor supramolecular assemblies have been successfully applied to the information encryption by 3D color codes.
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