Mononuclear Ni(II) and Zn(II) complexes of some potentially binucleating Schiff base ligands |
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| Authors: | John M. Bellerby John H. Morris W.Ewen Smith James M. McCrae |
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| Affiliation: | Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K.;Pigments Division, Ciba-Geigy Plastics and Additives Company, Paisley PA2 7BG, U.K. |
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| Abstract: | Mononuclear Zn(II) and Ni(II) complexes have been prepared from two new Schiff base ligands in which two alternative co-ordination sites (N2O2 or O2O2) occur. The first ligands is the Schiff base derived from 1,2-diaminobenzene and 2-hydroxy-3-carboxyl-1-napthaldehyde (bopaH4). The complexes of this ligand contain the metal ions in the N2O2 coordination site as a result of the steric requirements of the co-ordinated ligand. The second ligand series are derivatives of X-substituted 1,2-diaminobenzenes, 2-hydroxy-3-carboxy-1-naphthaldehyde and 2-hydroxy-5-methyl isophthaldehyde (X-bolaH3). In this case Ni(II) occupies the N2O2 site in its complexes with the X-bolaH3 ligands, whereas the Zn(II) complexes are co-ordinate through the O2O2 site since the steric restrictions are less severe. |
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| Keywords: | Author to whom correspondence should be addressed. |
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