Acta Cryst. (2012). E68, m290-m291  [ doi:10.1107/S1600536812004850 ]

(2,2'-Bipyridine-6,6'-dicarboxylato-³N,N',O⁶)(6'-carboxy-2,2'-bipyridine-6-carboxylato-³N,N',O⁶)rhodium(III)

H. Wang, X. Gu, B. Zhang, H. Su and M. Hu

Abstract: The Rh^III ion in the title compound, [Rh(C₁₂H₆N₂O₄)(C₁₂H₇N₂O₄)], is coordinated by four N atoms and two O atoms from two chelating ligands L and HL (H₂L = 2,2'-bipyridine-6,6'-dicarboxylic acid) to form a distorted octahedral geometry. Face-to-face -stacking interactions are observed between inversion-related pyridine rings, with a centroid-to-centroid distance of 3.581 (1) Å [the perpendicular distance between the rings is 3.3980 (7) Å]. Intermolecular O-HO hydrogen bonds link adjacent molecules into one-dimensional supramolecular chains along the c axis, while several intermolecular C-HO interactions are also observed.

Online 17 February 2012

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