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    Chemistry of SURMOFs: Layer-Selective Installation of Functional Groups and Post-synthetic Covalent Modification Probed by Fluorescence Microscopy

    Year: 2011

    Journal: J. Am. Chem. Soc., 2011, 133 (6), pp 1734–1737, 20110525

    Authors: Liu B. †, Ma M. ‡, Zacher D. †, Betard A. †, Yusenko K.†, Metzler-Nolte N. ‡, ll C.W. §, Fischer R.A. *†

    Last authors: Roland A. Fischer

    Organizations: †Chair of Inorganic Chemistry II—Organometallics and Materials Chemistry and ‡Chair of Inorganic Chemistry I—Bioinorganic Chemistry, Ruhr-Universit t Bochum, D-44870 Bochum, Germany § Institute of Functional Interfaces, Karlsruhe Institute of Technology, D-76344 Karlsruhe, Germany

    Country: Germany

    Layer-selective installation of functional groups at SURMOFs (surface-attached metal−organic framework multilayers) is reported. Multilayers of [Cu(ndc)(dabco)0.5] grown in [001] orientation on pyridine-terminated organic self-assembled monolayers on Au substrates were functionalized with amino groups by step-by-step liquid-phase epitaxy. The method allows the growth of samples exhibiting one monolayer of functional groups at the external thin-film surface. In situ quartz crystal microbalance monitoring confirmed the presence of amino groups by turning the multilayer film from a non-reactive to a reactive material for covalent binding of fluoresceinisothiocyanate, and fluorescence microscopy displays the expected luminous property.