Acta Cryst. (2009). E65, m1026  [ doi:10.1107/S1600536809030128 ]

Diaquabis(1,10-phenanthroline)magnesium dichromate(VI) 1,10-phenanthroline disolvate

H.-X. Liu, G.-Y. Dong, Z.-H. Ma and G.-H. Cui

Abstract: In the title compound, [Mg(C₁₂H₈N₂)₂(H₂O)₂][Cr₂O₇]·2C₁₂H₈N₂, the cation and anion are situated on a twofold rotation axis. The Mg^II ion is coordinated by four N atoms from two 1,10-phenanthroline ligands and two O atoms from coordinated water molecules in a distorted octahedral geometry. Intermolecular O-HN and O-HO hydrogen bonds and - interactions between the aromatic rings [shortest centroid-centroid separation = 3.527 (2) Å] link the cations, anions and 1,10-phenanthroline solvent molecules into a hydrogen-bonded cluster.

Online 8 August 2009

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