Abstract
The asymmetric unit of the title compound, [Ni(C15H14NO2)2], comprises an Ni(II) cation, lying on an inversion centre, and a Schiff base anion that acts as a bidentate ligand. The Ni(II) cation is in a square-planar coordination environment binding to the imine N and phenolate O atoms of the two Schiff base ligands. The N- and O-donor atoms of the two ligands are mutually trans, with Ni-N and Ni-O bond lengths of 1.9191 (11) and 1.8407 (9) Å, respectively. The plane of the meth-oxy-benzene ring makes a dihedral angle of 84.92 (6)° with that of the phenolate ring. In the crystal, mol-ecules are linked into screw chains by weak C-H⋯O hydrogen bonds. Additional C-H⋯O hydrogen bonds, together with C-H⋯π contacts, arrange the mol-ecules into sheets parallel to the ac plane.
Highlights
The asymmetric unit of the title compound, [Ni(C15H14NO2)2], comprises an NiII cation, lying on an inversion centre, and a Schiff base anion that acts as a bidentate ligand
The NiII cation is in a square-planar coordination environment binding to the imine N and phenolate O atoms of the two Schiff base ligands
Molecules are linked into screw chains by weak
Summary
Supporting information: this article has supporting information at journals.iucr.org/e. Schiff bases have often been used as chelating ligands in coordination chemistry as they readily form stable complexes with most transition metal ions (Kalita et al, 2014; Mohamed et al, 2010). The title compound, bis{2-[(E)-(4-methoxylbenzyl)iminomethyl]phenolato-2N,O1}nickel(II), (I), is related to bis{2-[1(benzylimino)ethyl]phenolato}palladium(II) (Mohd Tajuddin et al, 2010) in terms of the geometry around the metal centre. 4-methoxy substituent on the phenyl ring of the benzyl unit bound to the imine N atom (Fig. 1). (iii) in the other closely related NiII complexes with N2O2-coordinating Schiff base ligands (Bahron et al, 2011; Mohd Tajuddin et al, 2010). The methoxy substituent is coplanar with the ring to which it is bound, the C15—O2—C12—C13 torsion angle being 3.93 (2). The plane of the methoxybenzene ring (C9–C14) makes a dihedral angle of 84.92 (6). The symmetry-related Schiff base ligand is generated by the symmetry code (x + 1, y, z + 1)
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