Acta Cryst. (2009). E65, m119-m120  [ doi:10.1107/S1600536808042487 ]

A binuclear cobalt(II) complex of an NO₃-donor Schiff base derived from 3-carboxylsalicylaldehyde and 2-nitroaniline

Z.-W. Yu, L. Chang, P. Sun and M.-H. He

Abstract: In the crystal structure of the centrosymmetric title complex, bis{-3-[(2-nitrophenyl)iminomethyl]-2-oxidobenzoato}dicobalt(II), [Co₂(C₁₄H₈N₂O₅)₂], in which the ligand is 3-[(2-nitrophenyl)iminomethyl]-2-oxidobenzoate, a Schiff base synthesized from 2-nitroaniline with 3-carboxylsalicylaldehyde, the two cobalt(II) ions in the molecular unit are bridged by two phenolate O atoms of the ligands. Each metal centre has a distorted square-planar geometry. In the crystal structure, molecules are linked by CoO interactions involving the nitro O atoms, forming a two-dimensional network. There are also C-HO and - stacking interactions [centroid-centroid distances of 3.5004 (2), 3.6671 (2) and 3.6677 (2) Å] between adjacent benzene rings of the two-dimensional networks, leading to the formation of a three-dimensional framework.

Online 20 December 2008

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