Kasumov, VTÖzalp-Yaman, STas, EChemical Engineering2024-07-052024-07-0520051386-14251873-355710.1016/j.saa.2005.02.0412-s2.0-27644547390https://doi.org/10.1016/j.saa.2005.02.041https://hdl.handle.net/20.500.14411/1239Ozalp Yaman, Seniz/0000-0002-4166-0529Nickel(II) complexes of a series of N,N'-polymethylenebis(3,5-Bu'(2)-salicylaidimine) ligands containing 2,4-di-Bu'(2)-phenol arms, NiLx, were synthesized and their spectroscopic and redox properties were examined. The UV-vis, H-1 NMR spectroscopic and magnetic results indicate that complexes NiL1-NiL4 unlike NiL5 and NiL6 have a square-planar structure in the solid state and in solution. Cyclic voltammograms of NiLx (x= 1-4) complexes displayed two-step oxidation processes. The first oxidation peak potentials of all Ni(II) complexes corresponds to the reversible one-electron oxidation process of the metal center, yielding Ni(III) species. The second oxidation peak of the complexes was assigned as the ligand based oxidation generating a coordinated phenoxyl radical species. (c) 2005 Elsevier B.V. All rights reserved.eninfo:eu-repo/semantics/closedAccessN,N '-polymethylenebis(3,5-Bu '(2)-salicylaidiminato)nickel(II)spectroscopyelectrochemistryArticleQ1Q1621-3716720WOS:0002333724001041587654937