Dynamic Full‐Color Tuning of Organic Chromophore in a Multi‐Stimuli‐Responsive 2D Flexible MOF
| Autor: | Zhao‐Quan Yao, Kai Wang, Rui Liu, Yi‐Jia Yuan, Jing‐Jing Pang, Quan Wen Li, Tian Yin Shao, Zhi Gang Li, Rui Feng, Bo Zou, Wei Li, Jian Xu, Xian‐He Bu |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Angewandte Chemie. 134 |
| ISSN: | 1521-3757 0044-8249 |
| DOI: | 10.1002/ange.202202073 |
| Popis: | Developing universal stimuli-responsive materials capable of emitting a broad spectrum of colors is highly desirable. Herein, we deliberately grafted a conformation-adaptable organic chromophore into the established coordination space of a flexible metal-organic framework (MOF). In terms of the coupled structural transformations and the space confinement, the chromophore in the MOF matrix underwent well-regulated conformational changes under physical and chemical stimuli, simultaneously displaying thermo-, piezo-, and solvato-fluoro-chromism with color tunability over the visible range. Owing to the resilient nature and the reduced dimensionality of the selected coordination space, all three color modulations behaved in a sensitive and self-reversible manner, each following a linear correlation of the emission maximum with stimulus. Single-crystal X-ray diffraction of the variable-temperature structures and solvent-inclusion crystals elucidated the intricate color varying mechanisms. |
| Databáze: | OpenAIRE |
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