Norfloxacin and N-Donor Mixed-Ligand Copper(II) Complexes: Synthesis, Albumin Interaction, and Anti-Trypanosoma cruzi Activity

Figure 7

X-band EPR spectra for complexes 1, Cu(II)-bipy, 2, and Cu(II)-phen with equimolar amounts of HSA or BSA (concentration of the complexes: 0.5 mM, phosphate buffer 20 mM, pH 7.4, and temperature 77 K). (a) 1:HSA; (b) Cu(II)-bipy:HSA; (c) 1:BSA; (d) Cu(II)-bipy:BSA; (e) 2:HSA; (f) Cu(II)-phen:HSA; (g) 2:BSA; (h) Cu(II)-phen:BSA.