Acta Cryst. (2009). E65, m621  [ doi:10.1107/S1600536809016316 ]

catena-Poly[hemi(hexane-1,6-diammonium) [[aquadibromidomanganese(II)]--pyridine-2-carboxylato]]

N.-H. Kim, I.-C. Hwang and K. Ha

Abstract: The asymmetric unit of the title compound, {(C₆H₁₈N₂)_0.5[MnBr₂(C₆H₄NO₂)(H₂O)]}_n, contains the repeat unit of the complex anion and one-half of a hexane-1,6-diammonium cation that is located on a twofold rotation axis. In the anionic polymer, the Mn²⁺ ions are bridged by the pyridinecarboxylate (pic) anion ligand, forming a chain structure along the c axis. The Mn²⁺ ion is six-coordinated in a distorted octahedral environment by one N atom of the pyridine ring, two O atoms of the two carboxylate groups, one O atom of the water molecule and two Br atoms. The compound displays intermolecular N-HO, N-HBr, O-HBr and O-HO hydrogen bonding. There may also be intermolecular - interactions between adjacent pyridine rings, with a centroid-centroid distance of 3.992 (4) Å.

Online 7 May 2009

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