Abstract
A new bidentate ON donor Schiff base supported on a polystyrene matrix has been synthesized by the reaction of aminomethylated polystyrene and hydroxyacetone. The chelating resin reacts with metal salt/metal complex and forms metal-bound polymers. The formulae of the metal-bound polymers are: PSLCu(CH 3COO)·S, PSLNi (CH 3COO)·3S, PSLCo(CH 3COO)·S, PSLFeCl 2·2S, PSLZn (CH 3COO)·S, PSLZnCl·S, PSLMoO 2(acac), and PSLUO 2(CH 3COO)·S (where PSLH = polymer-anchored ligand; S = ethanol or methanol and acac = deprotonated acetylacetone). The polymer-anchored complexes have been characterized by elemental analysis, IR and electronic spectra and magnetic susceptibility measurements. The negative shifts of the ν(CO) (alcoholic) and ν(CN) (azomethine) are indicative of the ON donor behaviour of the polymer-anchored ligand. The complexes PSLNi(CH 3COO)·3S, PSLCo(CH 3COO)·S, PSLFeCl 2·2S, and PSLCu(CH 3COO) 2·S are paramagnetic while PSLZn(CH 3COO)·S, PSLZnCl·S, PSLMoO 2(acac), and PSLUO 2(CH 3COO)·S are diamagnetic. The force constant and UO bond distance of the polymer-anchored uranium(VI) complexes are 7.03 mdyn/Å and 1.73 Å, respectively. The copper(II)- and cobalt(II)-bound polymers exhibit a square planar structure, nickel(II), iron(III), molybdenum(VI) and uranium(VI) complexes are octahedral, and zinc(II) complexes are tetrahedral.
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