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Incorporation of Clathrochelate-Based Metalloligands in Metal–Organic Frameworks by Solvent-Assisted Ligand Exchange

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journal contribution
posted on 13.02.2020, 20:35 by Ophélie M. Planes, Pascal A. Schouwink, José L. Bila, Farzaneh Fadaei-Tirani, Rosario Scopelliti, Kay Severin
Iron­(II) cage complexes with terminal 4-pyridyl groups can be incorporated in metal–organic frameworks (MOFs) via solvent-assisted ligand exchange (SALE). Paddle-wheeled MOFs with N,N′-di-4-pyridylnaphthalenetetracarboxydiimide pillars were used as starting materials. Pillar exchange was nearly quantitative, despite the fact that the cage complexes are long (∼15 Å) and sterically demanding. The reactions provide products of high crystallinity, and the structures of daughter MOFs were determined by single crystal X-ray diffraction. The crystallographic analyses showed that some of the SALE experiments led to topological changes of the MOF structures.

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