{6,6′-Diethoxy-2,2′-[2,2-dimethylpropane-1,3-diylbis(nitrilomethylidyne)]diphenolato}nickel(II) monohydrate

Abstract

In the title complex, [Ni(C23H28N2O4)]·H2O, the NiII ion is coordinated by the N2O2 unit of the tetra­dentate Schiff base ligand in a slightly distorted planar geometry. The asymmetric unit of the title compound comprises one complex mol­ecule and a water mol­ecule of crystallization. The H atoms of the water mol­ecule make bifurcated inter­molecular hydrogen bonds with the O atoms of the phenolate and eth­oxy groups with R 1 2(5) and R 1 2(6) ring motifs, which may, in part, influence the mol­ecular configuration. The dihedral angle between the two benzene rings is 31.43 (5)°. The crystal structure is further stabilized by inter­molecular C—H⋯O and C—H⋯π inter­actions, which link neighbouring mol­ecules into one-dimensional extended chains along the a axis. An inter­esting feature of the crystal structure is the short inter­molecular C⋯C [3.3044 (14) Å] contact which is shorter than the sum of the van der Waals radii.