Acta Cryst. (2011). E67, m913  [ doi:10.1107/S1600536811021118 ]

catena-Poly[[diaquabis(formato-O)cobalt(II)]-₂-2,6-bis(pyridin-4-yl)-4,4'-bipyridine-²N²:N⁶]

D.-Y. Ma, D.-E. Sun and G.-Q. Li

Abstract: In the title complex, [Co(CHO₂)₂(C₂₀H₁₄N₄)(H₂O)₂]_n, the Co^II ion, lying on an inversion center, is six-coordinated by two O atoms from two monodentate formate ligands, two N atoms from two 2,6-bis(pyridin-4-yl)-4,4'-bipyridine (4-pybpy) ligands and two water molecules, displaying an octahedral geometry. The 4-pybpy ligand, having a twofold rotation axis, functions in a bridging coordination mode, connecting the Co^II ions into a corrugated chain along [01]. The chains are further linked into a three-dimensional supramolecular network by O-HO, C-HN and C-HO hydrogen bonds and - stacking interactions between the pyridine rings [centroid-to-centroid distance = 3.743 (2) Å].

Online 11 June 2011

Copyright © International Union of Crystallography
IUCr Webmaster