Acta Cryst. (2007). E63, m159-m161  [ doi:10.1107/S1600536806052627 ]

Tetrabutylammonium bis[N,N'-bis(4-chlorophenyl)pyridine-2,6-dicarboxamide(1-)]cobaltate(III) monohydrate

J. Y. Qi, Q. Y. Yang, Z. Y. Zhou and A. S. C. Chan

Abstract: The title complex, (C₁₆H₃₆N)[Co(C₁₉H₁₁Cl₂N₃O₂)₂]·H₂O, contains two tridentate ligands having the pyridine-2,6-dicarboxamide stem. The appreciably compressed octahedral coordination around the Co atom is formed via the pyridine (py) N atom and two deprotonated amide N atoms of each ligand, with four five-membered chelate rings and two tridentate ligands in a meridional arrangement. For each ligand, the pyridine ring and the carbonyl groups are nearly coplanar, with torsion angles in the range 0.8 (10)-3.05 (10)°. Two intermolecular hydrogen bonds are formed between an uncoordinated water molecule and two carbonyl O atoms from different complex anions.

Online 13 December 2006

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