ethylidene]amino}ethyl)imino]-1-phenylbutan-1-one. Form the electronic spectrum, the bands bands at 329, 339 and 378 nm are due to intraligand π-π* and n-π* transitions indicating the formation of the ligand and the shift from 374-380 nm observed are due to coordination to the central metal ion. Furthermore, it was also found that the Ni(II) complex exhibited two absorption bands at 433and 568 nm which are assignable to two spin allowed transitions, 1 A1g → 1 A2g, 1 A1g → 1 B1g characteristic of a square planar nickel complex. The IR spectrum, gave bands at 3479 cm -1 that was attributed to the phenolic hydroxyl group, while the absorptions at 3076, 2981, 1605, (H2dha-psc) have been reported. The coordinating properties and stereochemistry of these complexes have been deduced from elemental analysis, infrared and electronic spectral studies, molar conductance, magnetic measurements, mass spectrometry, thermogravimetric analysis, 1 H NMR and 13 C NMR studies, and cyclic voltammetry. The results of the analysis led to the proposition of the geometry of the complex to be square planar .