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Complexing ability of poly[5‐vinylsalicylidene‐2‐aminopyridine] towards different metal(II) salts
Author(s) -
ElShekeil Ali,
ElSonbati Adel Z.
Publication year - 1992
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19920590126
Subject(s) - chemistry , copper , cobalt , nickel , palladium , metal , inorganic chemistry , ligand (biochemistry) , chloride , chelation , polymer chemistry , magnetic moment , metal ions in aqueous solution , organic chemistry , catalysis , biochemistry , physics , receptor , condensed matter physics
Mononuclear and binuclear complexes of poly (5‐vinylsalicylidene‐2‐aminopyridine) a) were prepared with Copper(II), Cobalt (II), Nickel(II), Cadmium(II), dioxuranium(II) and Palladium(II) salts. The metal (II) acetates and palladium chloride gave mononuclear complexes, while cupric chloride gave a binuclear complex. The polymer complexes have been characterized on the basis of elemental analysis, u.v., i.r. and magnetic susceptibilty. The stereochemistry and the nature of the complexes are markedly dependent upon the mole ratio of the reactants and the anions. In all complexes the homopolymer was chelated to the metal ion via the nitrogen atom of the azomethine group and oxygen atom of the phenolic, group. The low value of the magnetic moment of binuclear copper complexes is due to the antiferromagnetic interaction between two adjacent copper atoms. The ligand field parameters are calculated and related to the electronic environments.