Stepwise Synthesis of Robust Metal鈥揙rganic Frameworks via Postsynthetic Metathesis and Oxidation of Metal Nodes in a Single-Crystal to Single-Crystal Transformation

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• 作者：Tian-Fu Liu ; Lanfang Zou ; Dawei Feng ; Ying-Pin Chen ; Stephen Fordham ; Xuan Wang ; Yangyang Liu ; Hong-Cai Zhou
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：June 4, 2014
• 年：2014
• 卷：136
• 期：22
• 页码：7813-7816
• 全文大小：279K
• 年卷期：v.136,no.22(June 4, 2014)
• ISSN：1520-5126

文摘

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鈥搇igand exchange reactions prior to oxidation and the kinetically inert metal鈥搇igand bonds after oxidation, robust MOFs, which would otherwise be difficult to synthesize, can be readily prepared.