Rigidifying Effect of Metal–Organic Frameworks: Protect the Conformation, Packing Mode, and Blue Fluorescence of a Soft Piezofluorochromic Compound under Pressures up to 8 MPa

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• 作者：Zhang-Wen Wei ; Cheng-Xia Chen ; Shao-Ping Zheng ; Hai-Ping Wang ; Ya-Nan Fan ; Ye-Ye Ai ; Mei Pan ; Cheng-Yong Su
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：August 1, 2016
• 年：2016
• 卷：55
• 期：15
• 页码：7311-7313
• 全文大小：261K
• 年卷期：0
• ISSN：1520-510X

文摘

We demonstrate that the conformation, packing mode, and blue fluorescence of a soft piezofluorochromic compound can be preserved by structurally fixing it into a solid calcium metal–organic framework (Ca-MOF, LIFM-40), which can survive pressures up to 8 MPa. DFT calculations have been combined with experimental results to indicate that the ligands adopting a specific conformation and packing without π···π interactions are the reasons for its rigidified blue emission.