Synthesis, DNA-Binding, Anticancer Evaluation, and Molecular Docking Studies of Bishomoleptic and Trisheteroleptic Ru-Diimine Complexes Bearing 2-(2-Pyridyl)-quinoxaline

Figure 7

Emission spectra of EB bound to DNA with increasing amount of 2. (EB) = (DNA) = 1·10⁻⁴ M [Ru(bpy) (phen) (2, 2’-pq)]²⁺ = 0-10·10⁻⁴ M λ_ex = 526 nm, in tris-HCl buffer solution. Stern–Vomer plot of I₀/I vs. r (where r = (complex 2)/(DNA)) of the fluorescence titration.