Synthesis, Spectroscopy and Electrochemical Behaviors of Nickel(ii) Complexes With Tetradentate Shiff Bases Derived From 3,5-bu<sub>2</Sub><i><sup>t<
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Date
2005
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Pergamon-elsevier Science Ltd
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Abstract
Nickel(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.
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Ozalp Yaman, Seniz/0000-0002-4166-0529
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Keywords
N,N '-polymethylenebis(3,5-Bu '(2)-salicylaidiminato)nickel(II), spectroscopy, electrochemistry
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Fields of Science
Citation
37
WoS Q
Q1
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Q1
Source
Volume
62
Issue
1-3
Start Page
716
End Page
720