Research Article
Synthesis and Characterisation of Copper(II) Complexes with Tridentate NNO Functionalized Ligand: Density Function Theory Study, DNA Binding Mechanism, Optical Properties, and Biological Application
Figure 3
Electronic spectral titration (a, b) of complex-1 (a) and complex-2 (b) with CT-DNA at 266 nm in Tris-HCl buffer; [complex] = 2.34 × 10−5; [DNA]: a 0.0, b 1.22 × 10−6, c 2.44 × 10−6, d 3.66 × 10−6, e 4.88 × 10−6, f 6.10 × 10−6 mol L−1. The arrow denotes the gradual increase of DNA concentration. Plot of [DNA]/ versus [DNA] for the absorption titration of CT-DNA with the copper(II) complex-1 (c) and complex-2 (d) in Tris-HCl buffer at the (c, d).
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