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 3

Fluorescence emission spectra of complexes: (a) complex 1, (b) complex 2 in tris-HCl buffer. Fluorescence intensity increases upon increasing CT DNA concentrations (5 μl, 10 μl, 15 μl, 20 μl, …). Insert: plots of relative emission intensity versus [DNA]/[Co].

(a)

(b)