Capturing snapshots of post-synthetic metallation chemistry in metal-organic frameworks

Witold M. Bloch, Alexandre Burgun, Campbell J. Coghlan, Richmond Lee, Michelle L. Coote, Christian J. Doonan, Christopher J. Sumby*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    169 Citations (Scopus)

    Abstract

    Post-synthetic metallation is employed strategically to imbue metal-organic frameworks (MOFs) with enhanced performance characteristics. However, obtaining precise structural information for metal-centred reactions that take place within the pores of these materials has remained an elusive goal, because of issues with high symmetry in certain MOFs, lower initial crystallinity for some chemically robust MOFs, and the reduction in crystallinity that can result from carrying out post-synthetic reactions on parent crystals. Here, we report a new three-dimensional MOF possessing pore cavities that are lined with vacant di-pyrazole groups poised for post-synthetic metallation. These metallations occur quantitatively without appreciable loss of crystallinity, thereby enabling examination of the products by single-crystal X-ray diffraction. To illustrate the potential of this platform to garner fundamental insight into metal-catalysed reactions in porous solids we use single-crystal X-ray diffraction studies to structurally elucidate the reaction products of consecutive oxidative addition and methyl migration steps that occur within the pores of the Rh-metallated MOF, 1·[Rh(CO)2[[Rh(CO)2 Cl2[.

    Original languageEnglish
    Pages (from-to)906-912
    Number of pages7
    JournalNature Chemistry
    Volume6
    Issue number10
    DOIs
    Publication statusPublished - 1 Oct 2014

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