Journal
ELECTROANALYSIS
Volume 24, Issue 7, Pages 1605-1612Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201200120
Keywords
Copper(II) complexes; Cyclic voltammetry; tpmc ligands; Conductometry; Cu(II) sensors
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Funding
- Ministry of Education and Science, Republic of Serbia [172060]
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Mixed ligand dinuclear copper(II) complexes of the general formula [Cu2(Rdtc)tpmc)](ClO4)3 with octaazamacrocyclic ligand tpmc and four different heterocyclic dithiocarbamate ligands Rdtc-, as well as the complexes [Cu2(tpmc)](ClO4)4 and [Cu(tpmc)](ClO4)2 center dot 2H2O were studied in aqueous NaClO4 and HClO4 solutions by cyclic voltammetry on glassy carbon electrode. The electrochemical properties of the ligands and Cu(II) complexes were correlated with their electronic structure. Conductometric experiments showed different stoichiometry in complexation of tpmc with Cu2+ ions and transport of ions in acetonitrile and in aqueous media. These studies clarified the application of this macrocyclic ligand as ionophore in a PVC membrane copper(II) selective electrode and contributed elucidation of its sensor properties.
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