Abstract
A mononuclear copper(II) complex [CuII(L)(fu)2] (1) [L = 2-(2-pyridyl)benzimidazole, fu = furoate] has been synthesized and characterized by X-ray crystallography. Structural analysis reveals that 1 adopts a distorted square pyramidal geometry with CuN2O3 chromophore. Spectrophotometric and hydrodynamic investigations suggest that the complex binds with DNA in an intercalative mode with a binding constant of (3.19 ± 0.32) × 104 M−1. 1 induces oxidative cleavage of the supercoiled DNA to its nicked circular as well as linear forms. 1 is also proved to be an anti-cancer agent on human keratinocyte cells.
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