Synthesis, characterization and DNA binding investigations on 1D polymeric copper(II) complexes of 1-amidino-O-alkylurea (alkyl = methyl, ethyl or propyl) having both dicyanamido and chloro bridges

摘要: AbstractThree new copper(II) complexes, [(CuL)2Cl{N(CN)2}3]n, where L = 1-amidino-O-methylurea (1), 1-amidino-O-ethylurea (2), or 1-amidino-O-propylurea (3), have been synthesized and characterized. The single crystal X-ray structure of 2 powder diffraction analysis on 1 3 show that they crystallize in the monoclinic system. neutral dinuclear entity contains a crystallographic 2-fold axis passing through amido nitrogen bridging dicyanamido ligand. units are bridged by weak Cu … Cl interactions axial position both copper ions to form 1D polymer. interaction 1–3 with calf-thymus DNA (CT-DNA) has explored using absorption, emission, thermal denaturation, cyclic voltammetric studies, viscosity experiments. complexes bind CT-DNA non-intercalative mode order binding ability is 1 > 2 > 3.