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Original Articles

Synthesis and Characterization of Copper (II) Chelates Derived from Tetradentate Ligands Having Nitrogen and Sulfur Donors

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Pages 577-591 | Received 28 Oct 1985, Accepted 14 Feb 1986, Published online: 05 Dec 2006
 

Abstract

Twenty copper(II) chelate compounds were prepared and characterized by elemental analyses, magnetic moments, infrared, and UV-visible spectra. The general formulation CuLX2 obtains when X = Cl, Br, NO3 , and ClO4 , but Cu2LX2 appears to obtain when X = SO4. The 1igands (L) used include 1,8-diamino-3,6-dithiaoctane, 1,8-bis(2-pyridyl)-3,6-dithiaoctane, 4-methyl-1,8-bis(2-pyridyl)-3,6-dithiaoctane and 1,9-bis(2-pyridyl)-3,7-dithianonane. Variation of anions, ligand chelate ring size, and obligatory steric bulk is discussed in relation to the complexes physical properties and stereodynamics.

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