Acta Cryst. (2007). E63, m1760  [ doi:10.1107/S1600536807025081 ]

2,9-Dimethyl-1,10-phenanthrolinium bis(pyridine-2,6-dicarboxylato-³O,N,O')ferrate(III) dihydrate

H. Aghabozorg, E. Sadrkhanlou, J. Soleimannejad and H. Adams

Abstract: The title compound, (C₁₄H₁₃N₂)[Fe(C₇H₃NO₄)₂]·2H₂O or (dmpH)[Fe(pydc)₂]·2H₂O (dmp is 2,9-dimethyl-1,10-phenanthroline and pydcH₂ is pyridine-2,6-dicarboxylic acid), is a six-coordinate Fe^III complex obtained by reacting neocuproine (dmp), dipicolinic acid (pydcH₂) and iron(II) chloride. The anionic six-coordinate complex has a distorted octahedral geometry and is connected to its counter-cation by a number of intermolecular interactions, forming infinite one-dimensional chains in the [010] direction. Ion pairing, metal-ligand coordination and van der Waals forces, as well as intermolecular X-HO hydrogen bonds (X = O, N and C) and - stacking interactions [with centroid-to-centroid separations of 3.531 and 3.457 Å, shortest interplanar distances of 3.355 and 3.449 Å, and interplanar angles of 1.89 and 5.45°], result in a three-dimensional framework.

Online 26 May 2007

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