Solvothermal synthesis and characterization of two inorganic–organic hybrid materials based on barium

Abstract

Two metal–organic frameworks containing barium were synthesized hydrothermally and investigated for their catalytic properties. Ba₂F₂[O₃SC₂H₄SO₃] has barium fluoride layers linked by organic 1,2-ethanedisulfonate molecules. Ba[O₃SC₂H₄SO₃] has discrete barium centers arranged in layers and connected covalently by ethanedisulfonate bridges. Thermogravimetric analysis showed that Ba₂F₂[O₃SC₂H₄SO₃] is stable to ca. 325 °C and Ba[O₃SC₂H₄SO₃] to ca. 375 °C. These materials expand the metal–organic frameworks available for group II metals bound to organodisulfonate linkers and are potentially useful for a range of heterogeneous acid catalysis reactions.