Acta Cryst. (2009). C65, m86-m90 [ doi:10.1107/S0108270109000869 ]
Abstract: The title cobalt coordination polymers, catena-poly[[[aquatripyridinecobalt(II)]-![[mu]](/logos/entities/mu_rmgif.gif)
-tetrachloroterephthalato] pyridine solvate], {[Co(C8Cl4O4)(C5H5N)3(H2O)]·C5H5N}n, (I), and catena-poly[[[diaquadipyridinecobalt(II)]--tetrachloroterephthalato] 1,4-dioxane trihydrate], {[Co(C8Cl4O4)(C5H5N)2(H2O)2]·C4H8O2·3H2O}n, (II), have been prepared with tetrachloroterephthalic acid (H2BDC-Cl4) under different solvent media. Both complexes form infinite cobalt(II)-tetrachloroterephthalate polymeric chains. In (I), two independent CoII ions are six-coordinated through N3O3 donor sets in slightly distorted octahedral geometries provided by two carboxylate and three pyridine ligands, and one water molecule. The structure of (II) contains two independent CoII atoms, each lying on a twofold axis, which adopt a tetragonally distorted N2O4 octahedral geometry via two carboxylate groups, two pyridine ligands and two water molecules. The different stoichiometry of coordinated and solvent guest molecules leads to different two-dimensional supramolecular networks, with (I) utilizing C-H
![[pi]](/logos/entities/pi_rmgif.gif)
and weak - interactions and (II) utilizing mainly conventional hydrogen bonding.
Formula: [Co(C8Cl4O4)(C5H5N)3(H2O)]·C5H5N and [Co(C8Cl4O4)(C5H5N)2(H2O)2]·C4H8O2·3H2O
 |   Structure factor file (CIF format) (571.6 kbytes) |
| Structure factor file (CIF format) (300.3 kbytes) |
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