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    STUDIA CHEMIA - Issue no. 1 / 2014  
         
  Article:   DESIGN, SYNTHESIS AND CHARACTERIZATION OF NEW Cu(II) COMPLEXES WITH N-SUBSTITUTED SULFONAMIDE LIGANDS.

Authors:  RADU OPREAN. 		 
       
         
  Abstract:   Three new Cu(II) complexes with potential biological activity with N-substituted sulfonamide-type ligands (one new - HL1 and one - H2L2 previously reported by our research group) were synthesized and characterized. The aromatic nucleus and the N-heterocyclic nuclei found in the ligands’ structures could facilitate an efficient interaction between the complexes and DNA, as a preliminary step in exerting their nuclease activity. The HL1 ligand was characterized by elemental analysis, IR spectroscopy and mass spectrometry. The binary complexes, [Cu(L1)2] and [Cu(L2)(H2O)2] and the ternary Cu(II)-sulfonamide-1,10-phenanthroline complex [Cu(L1)2(phen)] were characterized by elemental analysis and spectral methods (IR, UV-Vis, EPR). Complex [Cu(L2)(H2O)2] was characterized by X-ray diffraction, the data suggesting a severely distorted square-planar geometry.

Keywords: N-substituted sulfonamides, copper(II) complexes, IR, UV-Vis and EPR spectroscopy, X-ray diffraction
 
         
     
         
         
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