Abstract
Copper(II) macrocyclic complexes have been synthesized with five novel ligands: L1-1,7,10,16-tetraaza-2,6,11,15-tetraone-4,13-dithiacycloocta-decane, L2-1,7,11,17-tetraaza-2,6,12,16-tetraone-4,14-dithia-cyclocosane, L3-1,7,10, 13,19,22-hexaaza-2,6,14,18-tetraone-4,16-dithiacyclo-tetracosane, L4-1,7,14,20,tetraaza-2,6,15,19-tetraone-4,17,di- thiatricyclo [22, 4, O21,26, O8,13] hexacosa-8,10,12,21,23,25-hexene, L5- 1,7,13,19,25,26-hexaaza-2,6,14,18 tetraone-4,16 dithia tricyclo [23, 3, 1, I8,12] hexacosa [8(26), 10, 12, 20(25), 22, 24] hexane and characterized by elemental analysis, molar conductance, magnetic susceptibility, i.r, u.v.–vis, EPR spectral studies, thermal studies and electrochemical properties. The molar conductance measurements of the complexes in DMSO correspond to 1:2 electrolytes. g-Values are calculated for all of the complexes in the polycrystalline form as well as in DMSO solution. On the basis of i.r, electronic and EPR spectral studies a square planar geometry has been assigned to these complexes. Cyclic voltammograms for all the complexes are similar to quasi-reversible redox processes CuIICuII⇆CuIICuI⇆CuICuI. The complexes were also evaluated against the growth of bacteria (S. fecalis and E.coli) in vitro.
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An erratum to this article is available at http://dx.doi.org/10.1007/s11243-006-0056-7.
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Chandra, S., Gupta, R., Gupta, N. et al. Biologically Relevant Macrocyclic Complexes of Copper Spectral, Magnetic, Thermal and Antibacterial Approach. Transition Met Chem 31, 147–151 (2006). https://doi.org/10.1007/s11243-005-6194-5
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DOI: https://doi.org/10.1007/s11243-005-6194-5