A. Ourari, Yasmina Ouennoughi, D. Aggoun
Jan 8, 2014
Citations
1
Influential Citations
32
Citations
Journal
Polyhedron
Abstract
Abstract A tetradentate Schiff base ligand ( 3 ) has been synthesized via the reaction of 5′-( N -methyl- N -phenylaminomethyl)-2′-hydroxyacetophenone ( 2 ) with a stoichiometric amount of ethylenediamine in absolute ethanol. Compound 2 was prepared by reaction of 5′-chloromethyl-2′-hydroxyacetophenone ( 1 ) with N -methylaniline, in the presence of sodium bicarbonate in tetrahydrofuran. Compound 1 , on the other hand, was obtained through a reaction between a hydrochloric acid–formaldehyde mixture and 2′-hydroxyacetophenone. Refluxing a mixture of the Schiff base ( 3 ) and a stoichiometric amount of nickel(II) acetate tetrahydrate in absolute ethanol at 50 °C under a nitrogen atmosphere afforded the expected tetradentate nickel(II)-Schiff base coordination compound ( 4 ). Compounds 1 – 4 have been characterized with the aid of a number of techniques: UV–Vis spectrophotometry; FT-IR, 1 H NMR, 13 C NMR, and mass spectrometry; and elemental analysis. Cyclic voltammetry has been employed to investigate the redox behavior of compound 4 as well as the ability of the electrogenerated nickel(I) form of 4 to catalyze the reduction of 1-iodooctane.