Hydrothermal Synthesis, Structural Characterization, and Interaction Mechanism with DNA of Copper(II) Complex Containing 2,2′-Bipyridine

Figure 13

Influence of phosphate on the UV-Vis spectra of Cu-bipy (pH 7.40). c(Cu-bipy) = 1.0 × 10⁻⁵ mol·L⁻¹; c(Na₂HPO₄) = 0.00, 0.33, 0.67, 1.00, 1.33, 1.67, 2.00, 2.33, 2.67, 3.00, 3.33, 3.67, 4.00, 4.33, 4.67, and 5.00 × 10⁻⁵ mol·L⁻¹, respectively.