Acta Crystallographica Section E

Structure Reports Online

Volume 64, Part 5 (May 2008)

metal-organic compounds

is2286 scheme

Acta Cryst. (2008). E64, m670-m671 [ doi:10.1107/S1600536808009835 ]

Chlorido{5,5'-dimethoxy-2,2'-[1,2-phenylenebis(nitrilomethylidyne)]diphenolato-⁴O,N,N',O'}manganese(III)

N. E. Eltayeb, S. G. Teoh, S. Chantrapromma, H.-K. Fun and R. Adnan

Abstract: In the title complex, [Mn(C₂₂H₁₈N₂O₄)Cl], the Mn^III centre is in a distorted square-pyramidal configuration, with the basal plane formed by the N₂O₂ donors of the tetradentate Schiff base dianion; the two phenolate O atoms and the two imine N atoms are each mutually cis. The chloride ion occupies the apical position. The dihedral angle between the two outer phenolate rings of the tetradentate Schiff base ligand is 16.44 (9)°. The central benzene ring makes dihedral angles of 10.64 (9) and 25.17 (10)° with the two outer phenolate rings. In the crystal structure, weak C-HO and C-HCl interactions link the molecules into wave-like face-to-face double layers along the c direction. A [pi] - [pi] interaction involving the two outer phenolate rings is observed, the centroid-centroid distance being 3.743 (11) Å.