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      Environmentally benign dry-gel conversions of Zr-based UiO metal–organic frameworks with high yield and the possibility of solvent re-use

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          Abstract

          UiO-MOFs were synthesized using only 1/6 or upon solvent re-use only 1/30 of the DMF solvent volume compared to the solution synthesis on the same scale.

          Abstract

          Herein we report an alternative synthesis method for Zr-based UiO metal–organic frameworks (MOFs), namely dry-gel conversion (DGC). It was possible to synthesize nano- to microsized UiO-66, UiO-66-NH 2 and UiO-67 with high crystallinity, high surface area and increased yield using only one-sixth or less of the solvent volume compared to the solution synthesis on the same scale. Additionally, it is shown that solvent re-use is possible over at least five synthesis runs making the DGC method an ecological and extremely solvent-economical route to obtain Zr-based UiO-MOFs with reproducible results.

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          Most cited references35

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          Synthesis of metal-organic frameworks (MOFs): routes to various MOF topologies, morphologies, and composites.

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            Modular chemistry: secondary building units as a basis for the design of highly porous and robust metal-organic carboxylate frameworks.

            Secondary building units (SBUs) are molecular complexes and cluster entities in which ligand coordination modes and metal coordination environments can be utilized in the transformation of these fragments into extended porous networks using polytopic linkers (1,4-benzenedicarboxylate, 1,3,5,7-adamantanetetracarboxylate, etc.). Consideration of the geometric and chemical attributes of the SBUs and linkers leads to prediction of the framework topology, and in turn to the design and synthesis of a new class of porous materials with robust structures and high porosity.
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              Disclosing the Complex Structure of UiO-66 Metal Organic Framework: A Synergic Combination of Experiment and Theory

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                Author and article information

                Journal
                ICHBD9
                Dalton Transactions
                Dalton Trans.
                Royal Society of Chemistry (RSC)
                1477-9226
                1477-9234
                2017
                2017
                : 46
                : 30
                : 9895-9900
                Affiliations
                [1 ]Institut für Anorganische Chemie und Strukturchemie
                [2 ]Heinrich-Heine-Universität Düsseldorf
                [3 ]40204 Düsseldorf
                [4 ]Germany
                Article
                10.1039/C7DT01717K
                643d22c1-5c74-4cfe-b529-d9f67d2e3e6e
                © 2017
                History

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