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The three dimensional bismuth ethanedisulfonate framework Bi(O3SC2H4SO2)1.5(H2O)2 was synthesized under hydrothermal conditions using the bidentate ligand 1,2-ethanedisulfonate and then characterized through X-ray diffraction and elemental analyses. The bismuth cation coordinates at three different ethanedisulfonate ligands and has a coordination number of eight, which is accompanied by a distorted square antiprismatic configuration. Here, we report on the crystal structure of this bismuth metal--organic framework and its coordination behavior, which has thus far not been reported in heavier main group elements. [ABSTRACT FROM AUTHOR]

A 3-D metal-organic coordination polymer based on pyrazine-2,3-dicarboxylic acid (pzdcH2) formulated as {[Mn(pzdc)(H2O)2] · 2H2O}n (1), was obtained by the treatment of MnCl2 · 6H2O with pzdcH2, 8-hydroxy quinoline (8-HQ), and 2-amino-4-methyl pyridine (ampy). In this study, we describe the synthesis, elemental analysis, IR spectroscopy, TG analysis, and single X-ray diffraction. The X-ray single crystal structure reveals that the chemical environment around each Mn(II) is a distorted octahedral by participating one nitrogen, five oxygens from three (pzdc)2- and two water molecules, O5MnN. The centrosymmetric 1-D ladder-like structure of 1 is bridged by oxygens of (pzdc)2-, and Mn-pzdc-Mn bonds are the rungs for our ladder structure. In the crystal structure, intermolecular O-H ··· O hydrogen bonds result in the formation of a supramolecular structure, effective for the stabilization of the structure. The thermal decomposition of 1 indicates that it is quite thermally stable. The protonation constants of ampy, 8-HQ and pzdcH2 as the building blocks of proton transfer systems including pzdcH2-ampy and pzdcH2-8-HQ and the corresponding stability constants of these systems were determined by potentiometric study. The stoichiometry and stability constants of complexes of pzdcH2-ampy and pzdcH2-8-HQ with Mn2+ were investigated by this method in aqueous solution. The results obtained from solution study are comparable with the solid state results. [ABSTRACT FROM AUTHOR]

The article discusses the crystal structure of hexakis(dimethylsulfoxide-κO)iron(III)dodecatungstophosphate, whose chemical formula is C12H36FeO46PS6W12. Topics discussed include its physical properties, experimental details for obtaining it and its atomic coordinates and displacement parameters.

The article discusses the crystal structure of hexakis(dimethylsulfoxide-κO)iron(III)dodecatungstophosphate, whose chemical formula is C12H36FeO46PS6W12. Topics discussed include its physical properties, experimental details for obtaining it and its atomic coordinates and displacement parameters.