Polymer complexes. LXXIV. Synthesis, characterization and antimicrobial activity studies of polymer complexes of some transition metals with bis-bidentate Schiff base

Copper(II), cobalt(II), nickel(II), manganese(II) and cadmium(II) polymer complexes of N,N`-1,4-phenylene (2-hyboxynaphthaliden imine) have been synthesized. The structure of Schiff base and polymer complexes have been characterized by elemental analysis, spectral (FT-IR, UV–Vis, ¹H NMR and ESR), X-ray diffraction, magnetic moment measurements and molar conductance. The molar conductivity data indicates that the chelates are non-electrolytes for polymer complexes (1, 4 & 5). The analytical data support 1:1 (M:L) stoichiometry. FT-IR data shows the ligand function as bis-bidentate coordination through ONsingle bondNO donor system. The electronic spectra along with magnetic data suggest octahedral geometry for polymer complexes. The XRD patterns of the ligand and its polymer complexes showed the polycrystalline natures.