Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14122
Title: Synthesis, structural and magnetic properties, and catecholase activity of Cu(II) and related metal(II) complexes containing reduced Schiff base ligands
Authors: WANG XIAOBAI
Keywords: Reduced Schiff Base, Cu(II), Complexes, Solid state structures, Magnetic properties, Catecholase activities, Supramolecular chemistry
Issue Date: 7-Sep-2004
Source: WANG XIAOBAI (2004-09-07). Synthesis, structural and magnetic properties, and catecholase activity of Cu(II) and related metal(II) complexes containing reduced Schiff base ligands. ScholarBank@NUS Repository.
Abstract: Several copper(II) complexes with N-(2-hydroxybenzyl)aminoamides have been synthesized, structurally characterized, and their catecholase catalytic activities have been evaluated. The variable temperature magnetic properties of selected Cu(II) complexes have been studied. Several Cu(II) complexes containing N-(2-pridylmethyl)aminacids have been synthesized and characterized. The influences of solvent, alkali metals, pH and the nature of reactants have been investigated. Depending on the nature of the reactants used, a hexameric ring cation or an infinite 1D polymeric cation have been obtained for Cu(II) complexes of N-(2-pyridylmethyl)glycine. In the presence of KClO4, Cu(II) forms a cation containing Cu3K core with N-(2-pyridylmethyl)alanine in MeCN solvent, which decomposed to a 1D coordination polymer in the presence of moisture. N-(2-pyridylmethyl)histidine (Hphis) forms [LiCu3(phis)3]4+ with Cu(ClO4)2 in the presence of Li+, a trinuclear cation in the presence of Na+ or K+ in the pH range 5-7 or a 1D coordination polymer when the pH is 3. Complexes of these ligands with Zn(II) and Pb(II) were also synthesized and structurally characterized. The Pb(II) complex of N-(2-pyridylmethyl)alanine was found to form a 1D helical polymeric structure in the solid state.
URI: http://scholarbank.nus.edu.sg/handle/10635/14122
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03-acknowledgements summary and index.pdf83.8 kBAdobe PDF

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