Acta Cryst. (2008). E64, m35  [ doi:10.1107/S1600536807058102 ]

catena-Poly[[diaquamanganese(II)]--pyridine-2,4,6-tricarboxylato-⁵N,O²,O⁶:O⁴,O^4']

D.-W. Fu and H.-J. Xu

Abstract: In the title compound, [Mn(C₈H₂NO₆)(H₂O)₂]_n, each pyridine-2,4,6-tricarboxylate (tpc) ligand bridges two Mn^II ions with the formation of polymeric chains located on a twofold rotation axis. Each Mn^II ion is coordinated by two O and one N atoms from one tpc ligand, two O atoms from another ligand and two water molecules in a distorted pentagonal-bipyramidal geometry. The Mn-N [2.243 (2) Å] and Mn-O [2.206 (2)-2.3123 (16) Å] bond lengths are normal. The coordinated water molecules link neighbouring polymeric chains via O-HO hydrogen bonds into a two-dimensional framework parallel to the bc plane.

Online 6 December 2007

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