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Polymer complexes of 5,5ʹ-{(1E, 1Eʹ)-1,4-phenylenebis(diazene-2,1-diyl)}bis(quinoline-8-ol) (H₂L) with Cu(II), Co(II), Ni(II), Mn(II) and UO₂(II) were prepared and characterized by ¹H NMR, IR, UV–Vis, ESR spectroscopy, magnetic measurements, X-ray diffraction chemical analysis, thermoanalytical data and conductivity measurements. The ligand coordinates to the metal ion as dibasic tetradentate chelating agent and bonding occur through the hydroxyl oxygen and nitrogen atoms of quinoline ring moieties. From the ESR and electronic spectrum data, the bonding parameters of the M(II) polymer complexes have been calculated and the geometrical structures were confirmed. The efficiency of binding between 8-hydroxyquinoline and ligand with receptor of the colon cancer (2hq6) was predicted using the molecular docking. The low activation energies of Mn(II) polymer complex than other polymer complexes …