A highly augmented, (12, 3)-connected Zr-MOF containing hydrated coordination sites for the catalytic transformation of gaseous CO2 to cyclic carbonates. Issue 41 (10th July 2019)

• Record Type: Journal Article
• Authors: Jin, Guanghua; Sensharma, Debobroto; Zhu, Nianyong; Vaesen, Sebastien; Schmitt, Wolfgang
• Is Part Of: Dalton transactions. Volume 48:Issue 41(2019)
• Page Start: 15487
• Page End: 15492
• Publication Date: 2019-07-10
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c9dt02117e
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A Zr-MOF, which contains partially hydrated, 12-connected {Zr6 } nodes and extended carboxylate ligands was synthesized, characterised and utilised in CO2 cycloaddition catalysis. Abstract : A porous Zr-based MOF, [Zr6 (BTEB)4 (μ3 -O)4 (μ3 -OH)4 (H2 O)4 ], which contains partially hydrated, 12-connected {Zr6 } nodes and extended carboxylate ligands (BTEB 3− ), was synthesized and physicochemically characterised. The resulting (12, 3)-connected, 3D framework adopts an uncommon llj topology with a large, solvent accessible void volume of ca. 79% of the unit cell volume. The porous structure facilitates the uptake of N2 and activated samples give rise to BET surface areas of >1000 m 2 g −1 . Furthermore, the porosity and accessibility of Lewis acidic Zr(iv ) sites promote the catalytic transformation of gaseous CO2 to cyclic carbonates via cycloaddition reactions using epoxide reactants, whereby solvated MOFs exhibit higher catalytic performance than thermally treated samples.