Received 15 May 2013
The title complex, [Co2(C8H5NO4S)2(C10H8N2)3(H2O)2]·1.3H2O, was synthesized under hydrothermal conditions. The CoII ion is six-coordinated in a slightly distorted octahedral environment resulting from two carboxylate O atoms of two 2-carboxymethylsulfanyl nicotinate (2-CMSN2-) anions, one water molecule and three N atoms of three 4,4'-bipyridine ligands, with one 4,4'-bipyridine ligand situated on a centre of inversion. Two neighboring CoII ions are linked by two anions, giving a dinuclear [Co2(2-CMSN)2] subunit with a CoCo separation of 6.8600 (3) Å. The dinuclear subunits are joined by bridging 4,4'-bipyridine linkers, generating a three-dimensional network structure. Disordered water molecules are situated in the free space of this network. O-HO hydrogen bonding within and between the subunits enhances the stability of the structure.
For general background to coordination polymers, see: Wang et al. (2004). For crystal structures of related compounds based on 2-mercaptonicotinic acid, see: Sun et al. (2011). For complexes derived from the 2-H2CMSN ligand, see: Jiang et al. (2010, 2012).
Data collection: APEX2 (Bruker, 2006); cell refinement: SAINT (Bruker, 2006); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: WM2744 ).
Brandenburg, K. (2008). DIAMOND. Crystal Impact GbR, Bonn, Germany.
Bruker (2006). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Jiang, X.-R., Wang, X.-J. & Feng, Y.-L. (2010). Acta Cryst. E66, o3308.
Jiang, X.-R., Wang, X.-J. & Feng, Y.-L. (2012). Inorg. Chim. Acta, 383, 38-45.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Sun, D., Wang, D.-F., Han, X.-G., Zhang, N., Huang, R.-B. & Zheng, L.-S. (2011). Chem. Commun. 47, 746-748.
Wang, X.-L., Qin, C., Wang, E.-B., Xu, L., Su, Z.-M. & Hu, C.-W. (2004). Angew. Chem. Int. Ed. 43, 5036-5040.