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Synthesis and Characterization of Amine-Functionalized Mixed-Ligand Metal–Organic Frameworks of UiO-66 Topology

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journal contribution
posted on 15.09.2014, 00:00 by Sachin M. Chavan, Greig C. Shearer, Stian Svelle, Unni Olsbye, Francesca Bonino, Jayashree Ethiraj, Karl Petter Lillerud, Silvia Bordiga
A series of amine-functionalized mixed-linker metal–organic frameworks (MOFs) of idealized structural formula Zr6O4(OH)4(BDC)6–6X(ABDC)6X (where BDC = benzene-1,4-dicarboxylic acid, ABDC = 2-aminobenzene-1,4-dicarboxylic acid) has been prepared by solvothermal synthesis. The materials have been characterized by thermogravimetric analysis (TGA), powder X-ray diffraction (PXRD), and Fourier transform infrared (FTIR) spectroscopy with the aim of elucidating the effect that varying the degrees of amine functionalization has on the stability (thermal and chemical) and porosity of the framework. This work includes the first application of ultraviolet–visible light (UV-vis) spectroscopy in the quantification of ABDC in mixed-linker MOFs.