Evaluation of DNA Binding, Cleavage, and Cytotoxic Activity of Cu(II), Co(II), and Ni(II) Schiff Base Complexes of 1-Phenylindoline-2,3-dione with Isonicotinohydrazide

Table 5

Absorption properties of metal (II) complexes with CT-DNA.

Complexes	𝜆max; (nm)	Δ𝜆; (nm)	Hypochromicity; (%)	𝐾𝑏; (M^−1)
L–Cu(II)	275, 345	3	59.05, 65.45	10.50
L–Co(II)	280, 346	5	37.53, 42.18	5.88
L–Ni(II)	275, 344	2	37.53, 58.48	6.81