RESUMEN
The title compound, [Cu(NCS)(2)(C(20)H(21)N(3))]·0.5CH(2)Cl(2), crystallized with two independent complex mol-ecules (A and B) in the asymmetric unit, accompanied by one dichloro-methane solvent mol-ecule. Each Cu(II) atom has a square-pyramidal geometry, being coordinated by five N atoms, three from the (4-methyl-benz-yl)bis-(pyridin-2-ylmeth-yl)amine ligand and two from the thio-cyanate ligands. In the crystal, the B mol-ecules are linked via C-Hâ¯S inter-actions, forming chains propagating along [100].
RESUMEN
Three new copper(II) complexes of N-benzyl di(pyridylmethyl)amine (phdpa) were synthesized and characterized by spectroscopic methods. The interaction between CT-DNA and the complexes was studied by UV and fluorescence titration methods. It was found that the complex [(phdpa)Cu(H(2)O)Ac)](Ac), with the non-planar aromatic heterocyclic ring ligand (phdpa), showed good anticancer properties and could cause the fragmentation of the nucleus, although its interaction with CT-DNA was weaker than that of 1,10-phenanthroline (phen)-based copper(II) complexes. The anticancer activities of copper(II) complexes with phdpa and phen based ligands are correlated to their binding constants with DNA, but phen-based copper(II) complexes did not cause the nucleus fragmentation of HeLa cells. [(phdpa)Cu(H(2)O)Ac)](Ac) can noticeably decrease the oxygen content of a culture solution and of HeLa cells, which make it a new nucleus and oxygen related anticancer copper(II) complex. Information obtained here would be helpful in the design of new antitumor complexes in oxidative therapy.