Stepwise Synthesis of Robust Metal-Organic Frameworks via Postsynthetic Metathesis and Oxidation of Metal Nodes in a Single-Crystal to Single-Crystal Transformation
Stepwise Synthesis of Robust Metal-Organic Frameworks via Postsynthetic Metathesis and Oxidation of Metal Nodes in a Single-Crystal to Single-Crystal Transformation
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DOI：
10.1021/ja5023283
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发表时间：
2014-06-04
影响因子：
15
通讯作者：
Zhou, Hong-Cai
中科院分区：
文献类型：
--
作者：
Liu, Tian-Fu;Zou, Lanfang;Zhou, Hong-Cai
以PCN-426-Mg为模板，通过金属节点的合成后复分解和氧化（PSMO）策略，分步合成了两种坚固的金属有机骨架（MOFs）：PCN-426-Fe（III）和PCN-426-Cr（III）。框架始终保持其单晶形式。此外，PSMO后的框架的稳定性和孔隙率显着提高。通过利用氧化之前的动力学不稳定的金属-配体交换反应和氧化之后的动力学惰性的金属-配体键，可以容易地制备否则难以合成的稳健的M0 F。
Utilizing PCN-426-Mg as a template, two robust metal-organic frameworks (MOFs), PCN-426-Fe(III) and PCN-426-Cr(III), have been synthesized through a strategy of postsynthetic metathesis and oxidation (PSMO) of the metal nodes step by step. The frameworks remained in their single crystal form throughout. Furthermore, the stability and porosity of the frameworks were significantly improved after PSMO. By taking advantage of both the kinetically labile metal-ligand exchange reactions prior to oxidation and the kinetically inert metal-ligand bonds after oxidation, robust MOFs, which would otherwise be difficult to synthesize, can be readily prepared.