DNA Binding and Photocleavage Studies of Cobalt(III) Ethylenediamine Pyridine Complexes: [Co(en)2(py)2]3+ and [Co(en)2(mepy)2]3+
Figure 2
Absorption spectra of complexes: (a) complex 1, (b) complex 2, in tris-HCl
buffer. Upon addition of CT DNA to complex absorption decreases [Co] = 10 μM; [DNA] = 0–126 μM. Insert: plots of versus [DNA] for the titration of DNA with Co(III) complexes. Isosbestic points at 438, 576 for complex 1. Isosbestic points at 449, 578 for complex 2.
