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Acta Cryst. (2012). E68, m1184-m1185
[ doi:10.1107/S1600536812035441 ]

Poly[diaqua(₄-2,5-dicarboxybenzene-1,4-dicarboxylato-⁴O¹:O²:O⁴:O⁵)(₂-2,5-dicarboxybenzene-1,4-dicarboxylato-²O¹:O⁴)bis(1,10-phenanthroline-²N,N')dimanganese(II)]

K.-L. Zhong

Abstract: In the title compound, [Mn₂(C₁₀H₄O₈)₂(C₁₂H₈N₂)₂(H₂O)₂]_n, the Mn²⁺ ion has a slightly distorted octahedral N₂O₄ coordination geometry being coordinated by one aqua O atom, two N atoms of the chelating 1,10-phenanthroline ligand and three carboxyl O atoms from three 2,5-dicarboxybenzene-1,4-dicarboxylate (H₂btec^2-) ligands. The H₂btec^2- anion exhibits two different coordination modes, viz. [mu] ₂ and [mu] ₄. Both of the H₂btec^2- anions are located on special positions (inversion centers). The [mu] ₄-anion bridges adjacent Mn^II atoms, forming a chain along the a axis. Adjacent chains are further bridged by [mu] ₂-anions, resulting in a two-dimensional layered polymer parallel to (011). In the crystal, extensive carboxy-carboxylate O-HO and water-carboxylate O-HO interactions lead to the formation of a three-dimensional supramolecular network.

Poly[diaqua(4-2,5-dicarboxybenzene-1,4-dicarboxylato-4O1:O2:O4:O5)(2-2,5-dicarboxybenzene-1,4-dicarboxylato-2O1:O4)bis(1,10-phenanthroline-2N,N')dimanganese(II)]

K.-L. Zhong

Poly[diaqua(₄-2,5-dicarboxybenzene-1,4-dicarboxylato-⁴O¹:O²:O⁴:O⁵)(₂-2,5-dicarboxybenzene-1,4-dicarboxylato-²O¹:O⁴)bis(1,10-phenanthroline-²N,N')dimanganese(II)]