In this paper a new 5 chloro salicylaldehyde ureidoamine Schiff base ligand and its complex containing Mn(Ⅱ) and Co(Ⅱ){·2H2O,·2H2O,[Co(HL)(NO3)2]·2H2O,·2H2O} were synthesized by the condensating 5 chloro salicylaldehyde with semicarbazide.Its compositions and structure have been characterized by he ele mental analyses,thermal analyses,IR spectra and UV spectra.The free radical inhibition rate to O2- have been tested.
A new ligand N,N′-bis(2-methelene-1,10-phenanthroline)-3,6-dioxa-1,8-octaneethylenediamine(L) and the corresponding complexes LaL, LaL(Phe), and LaL( Try) were synthesized. The interaction of the complexes with calf thymus DNA was studied by means of electronic absorbance spectra, flurescence spectra, circula r dichroic spectra and viscosity experiments. All the results indicate that the complexes may interact mainly with calf thymus DNA by intercalation and coordina tion binding.
