Acta Cryst. (2008). E64, m258  [ doi:10.1107/S1600536807066809 ]

(Benzoato-²O,O')(quinoline-2-carboxylato-²N,O)(quinoline-2-carboxylic acid-²N,O)manganese(II)

N. D. Martins, J. A. Silva, M. Ramos Silva, A. Matos Beja and A. J. F. N. Sobral

Abstract: The crystal structure of the title compound, [Mn(C₇H₅O₂)(C₁₀H₆NO₂)(C₁₀H₇NO₂)], contains manganese(II) ions six-coordinated in a distorted octahedral environment. The equatorial plane is occupied by four O atoms, two from the carboxylate group of the benzoate ion, the other two from carboxylate/carboxyl groups of the quinaldate/quinaldic acid molecules. The axial positions are occupied by the N atoms of the quinoline ring systems. The metal ion lies on a twofold rotation axis that bisects the benzoate ligand; the quinaldate and quinaldic acid ligands are therefore equivalent by symmetry, and the carboxylate/carboxyl groups are disordered. The complexes are joined together by hydrogen bonds between the carboxylate/carboxyl groups of adjacent quinaldate/quinaldic acid molecules, forming zigzag chains that run along the c axis.

Online 21 December 2007

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