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. 2021 Jul 19;60(15):11530–11547. doi: 10.1021/acs.inorgchem.1c01550

Figure 2.

Figure 2

Select UV–vis spectra at pH <2 of the Cu2+ complexes formed by (A) DO4S (CCu2+ = CDO4S = 1.5 × 10–4 mol/L), (B) DO3S (CCu2+ = CDO3S = 1.0 × 10–4 mol/L), (C) DO3SAm (CCu2+ = CDO3SAm = 1.1 × 10–4 mol/L), and (D) DO2A2S (CCu2+ = CDO2A2S = 0.9 × 10–4 mol/L) at I = 0.15 mol/L NaCl (for solutions at pH >0.8) and T = 25.0 °C.