Visualizing the Dynamics of Temperature- and Solvent-Responsive Soft Crystals
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- 作者：Jiandong Pang ; Dr. Caiping Liu ; Dr. Yougui Huang ; Prof. Mingyan Wu ; Prof. Feilong Jiang ; Prof. Daqiang Yuan ; Falu Hu ; Dr. Kongzhao Su ; Guoliang Liu and Prof. Maochun Hong
- 刊名：Angewandte Chemie
- 出版年：2016
- 出版时间：June 20, 2016
- 年：2016
- 卷：128
- 期：26
- 页码：7604-7608
- 全文大小：2430K
- ISSN：1521-3757
文摘
We demonstrate that three flexible MOFs termed FJI-H11-R (FJI-H=Hong's group in Fujian Institute of Research on the Structure of Matter, R=Me, Et, iPr) can reversibly respond to temperature and solvents via structural transformations, which can be visualized by in situ single-crystal X-ray snapshot analyses. FJI-H11-R exhibit colossal anisotropic thermal expansion, with a record-high uniaxial positive thermal-expansion coefficient of 653.2×10−6 K−1 observed in FJI-H11-Me. Additionally, large c-axial shrinkage of 32.4 % is also observed during desolvation. The stimuli-responsive mechanism reveals the structural evolutions are related to the rotations and deformations of the organic linkers.