The Polarography of <I>N</I>,<I>N</I>′-Ethylenebis(acetylacetoniminato) and <I>N</I>,<I>N</I>′-Ethylene bis(salicylaldehydeiminato) Complexes of Cobalt(III), Nickel(II), and Copper(II) in an <I>N</I>,<I>N</I>′-Dimethylformamide Solution

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概要

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• The polarographic behavior of <I>N</I>,<I>N</I>′-ethylenebis(acetylacetoniminato) (baen) and <I>N</I>,<I>N</I>′-ethylenebis(salicylaldehydeiminato) (bisaen) complexes of cobalt(III), nickel(II), and copper(II) in DMF solutions was studied thoroughly. At the dropping mercury electrode, these metal complexes give well-defined cathodic waves corresponding to the reduction of metal(II) to metal(I). A careful and systematic study of the polarographic behavior of β-<I>cis</I> and <I>trans</I> cobalt(III)-baen and -bisaen complexes of the general formulae: CoZY<SUP>1−<I>a</I></SUP> and CoZX<SUB>2</SUB><SUP>1−2<I>b</I></SUP>, and that of nickel(II)- and copper(II)-baen complexes, revealed that the unusual stability of the metal(I)-baen and -bisaen complexes can be ascribed mainly to the stable square-planar nature of baen and bisaen. The effect of the replacement of the ligand by the halogen atom was also investigated.

• 公益社団法人 日本化学会の論文

著者

• Kodama Mutsuo

  Department Of Chemistry College Of General Education Hirosaki University

• Fujii Yuki

  Department Of Chemistry Faculty Of Science Ibaraki University

• Sakurai Mitsuo

  Department of Chemistry, Ibaraki University

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