Abstract
A Co(II) compound [Co2(ip)2(4-phpy)4·(H2O)2] (1); (H2ip = isophthalic acid and 4-phpy = 4-phenylpyridine) has been synthesized employing slow diffusion technique. Single crystal X-ray analysis reveals that compound 1 crystallizes in the triclinic system, space group P1¯ with a = 10.7041(3) Å, b = 14.2959(4) Å, c = 18.3474(5) Å; α = 73.3930(10)°, β = 76.0190(10)°, γ = 88.4780(10)° with V = 2608.06(13) Å3. The compound 1 forms based one-dimensional coordination polymer (1D CP) constructed by distorted octahedral Co(II) centres, which are interconnected via strands of isophthalate bridges resulting in a 1D chain polymer. The pyridine-based ligands are decorated as arms on both sides of Co(II) centers. The unique coordinating characteristics of isophthalate and pyridine ligands are accounted for the strong affinity towards DNA molecules for compound1. The binding affinities of compound 1 with DNA have been investigated via docking studies. Hirshfeld surface analysis was performed in order to check out the nature of intermolecular interactions and packing modes of compound 1 in the crystalline state.
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