C. Volkringer, J. Marrot, G. Férey
Feb 1, 2008
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Influential Citations
49
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Journal
Crystal Growth & Design
Abstract
Three new hybrid solids 1, 2, and 3 of calcium dicarboxylates have been obtained using hydrothermal conditions (24 h, 180 °C) with 2,6-naphathalenedicarboxylic acid (H2ndc) and 4,4′-biphenyldicarboxylic acid (H2bpdc) ligands. According to their single-crystal X-ray diffraction analyses, the three compounds exhibit dense networks with distinct dimensionalities for both the inorganic subnetwork and the whole structure. Three-dimensional (3D) 1 (Ca2(OH)2[ndc]) is built from layers of calcium oxo-hydroxide, pillared via the ndc ligands. Calcium is 7-fold coordinated with a monocapped trigonal prismatic surrounding (CaO4(OH)3). In 2 (Ca(H2O)[bpdc]), the structure consists of infinite chains of calcium polyhedra in a pentagonal bipyramidal coordination (CaO6(H2O) unit), the biphenyldicarboxylate species acting as scaffolds for the 3D structure. Complex 3 (Ca(H2O)3[bpdc]) also contains infinite chains of calcium polyhedra (with 8-fold coordination - CaO4(H2O)4 unit) but this time isolated because one of the two ...