A new example of ligand-to-metal electron-transfer process : one-electron reduction products of nickel(II)-tetradentate schiff base complexes |
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| Authors: | G. Cros J.-P. Costes D. de Montauzon |
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| Affiliation: | Laboratoire de Chimie de Coordination du CNRS associé à l''Université Paul Sabatier, 205 route de Narbonne, 31400 Toulouse, France |
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| Abstract: | The reduction of three nickel(III) complexes involving two symmetrical N,N′-ethylenebis (acetylacetoneiminato) and N,N′-ethylenebis (salicylideneiminato) and one non-symmetrical N,N′-ethylene (acetylacetoneiminatosalicylideneiminato) and Schiff bases has been investigated by electrochemistry and ESR spectroscopy. In all cases, exhaustive reduction results in the formation of nickel(I) complexes. However, ESR data support the formation of a nickel(II)-stabilized ligand radical species at the early stage of the reduction of the non-symmetrical Schiff base complex. |
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| Keywords: | Author to whom correspondence should be addressed. |
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