Synthesis and characterization of copper(II) hexaazamacrotetracyclic complexes containing organic ligands |
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Authors: | Ki-Young Choi Min-Ah Whang Han-Hyoung Lee Kyu-Chul Lee Moon-Jip Kim |
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Affiliation: | (1) Department of Chemistry Education, Kongju National University, Kongju, 314-701, Korea;(2) Department of Physics, Soonchunhyang University, Asan, 336-600, Korea |
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Abstract: | Two mononuclear copper(II) complexes [Cu(L)(NO2)](ClO4) (1) and [Cu(L)(MO4)]2· 5H2O (2) (L = 1,3,10, 12,16,19-hexaazatetracyclo[17,3,1,112.16,04.9]tetracosane) have been synthesized and their structures determined. Both compounds show a distorted square-pyramidal geometry with the two secondary and two tertiary amines of the macrocycle and one ligand coordinated at the axial position. Cyclic voltammetry of the complexes gives two one-electron waves corresponding to CuII/CuIII and CuII/CuI processes. The electronic spectra and electrochemical behavior of the complexes are significantly affected by the nature of the organic ligands. |
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