The Structures, Spectroscopic Properties, and Photodynamic Reactions of Three [RuCl(QN)NO]− Complexes (HQN = 8-Hydroxyquinoline and Its Derivatives) as Potential NO-Donating Drugs : Figure 4

Figure 4: Recorded and calculated IR spectra of [RuCl₃(hqn)NO]⁻ (a), [RuCl₃(2mqn)NO]⁻ (b), and [RuCl₃(2cqn)NO]⁻ (c) complexes in the 2000–1400 cm⁻¹ region (blue: experimental; black: calculated).