Dual Functionalized Cages in Metal–Organic Frameworks via Stepwise Postsynthetic Modification

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• 作者：Baiyan Li ; Dingxuan Ma ; Yi Li ; Yiming Zhang ; Guanghua Li ; Zhan Shi ; Shouhua Feng ; Michael J. Zaworotko ; Shengqian Ma
• 刊名：Chemistry of Materials
• 出版年：2016
• 出版时间：July 12, 2016
• 年：2016
• 卷：28
• 期：13
• 页码：4781-4786
• 全文大小：410K
• 年卷期：0
• ISSN：1520-5002

文摘

The introduction of bi- or multifunctionality into different cages of metal–organic frameworks (MOFs) has been of great interest because such MOF materials can demonstrate unique properties for various applications. Herein, we report a general strategy for creating different types of functionalized cages in MOFs by exerting control of the size of cage windows. Selective cage decoration was thereby enabled in such a manner that dual functional MOFs with different types of cages and pores can be created. The resultant different pore function MOF, DPF-MOF, is illustrated as a “proof of concept” in MOF MIL-101-Cr. An intermediate of a cascade reaction was successfully trapped and controlled the desired reaction direction. This DPF-MOF represents a new type of platform that, by trapping intermediates during the reaction processes, enhances our fundamental understanding of reaction chemistry in porous materials.