Abstract
The reaction between polystyrene 3-formylsalicylate and furoic acid hydrazide in DMF in the presence of ethyl acetate results in the formation of polystyrene N-(2-carbamoylfuranyl)-3'-carboxy-2'-hydroxybenzylideneimine (I). A benzene suspension of I reacts with mercaptoacetic acid and forms the polystyrene N-(2-carbamoylfuranyl)-C-(3'-carboxy-2'-hydroxyphenyl)thiazolidin-4-one, PSCH2–LH2 (II). A DMF suspension of II reacts with Mn(II), Ni(II), Cd(II), Fe(III) and UO2(VI) ions and forms the polystyrene-anchored coordination compounds of the types, [PSCH2–LMn(DMF)3], [PSCH2–LNi(DMF)3], [PSCH2–LCd(DMF)], [PSCH2–LH2FeCl3] and [PSCH2–LHUO2(NO3)(DMF)]. The polystyrene-anchored coordination compounds have been characterized on the basis of elemental analyses, spectral (IR, reflectance) studies and magnetic susceptibility measurements. II acts as a neutral tridentate ONO donor ligand in [PSCH2–LH2FeCl3], a monobasic tridentate ONO donor ligand in [PSCH2–LHUO2(NO3)(DMF)], a dibasic tridentate ONO donor ligand in [PSCH2–LMn(DMF)3], [PSCH2–LNi(DMF)3] and [PSCH2–LCd(DMF)]. A tetrahedral structure for Cd(II) and an octahedral structure for Mn(II), Ni(II), Fe(III) and a square-antiprism geometry for UO2(VI) complex are suggested. KEY WORDS: Thiazolidin-4-one, Polystyrene-anchored coordination compounds, Magnetic susceptibility, Complexometric, Magnetically dilute Bull. Chem. Soc. Ethiop. 2014, 28(1), 29-36.DOI: http://dx.doi.org/10.4314/bcse.v28i1.4
Highlights
There has been considerable interest in the synthesis and use of functionalized polymers having chelating abilities in recent years due to their practical convenience, operational flexibility and formation of coordination with high metal to polymer bond energies [1]
Thiazolidin-4-ones belong to an important group of heterocyclic compounds with carbonyl group at fourth position
We describe the syntheses and characterization of polystyrene-anchored thiazolidin-4-one, PSCH2–LH2 (II) and its coordination compounds with Mn(II), Ni(II), Cd(II), Fe(III) and UO2(VI) ions
Summary
There has been considerable interest in the synthesis and use of functionalized polymers having chelating abilities in recent years due to their practical convenience, operational flexibility and formation of coordination with high metal to polymer bond energies [1]. A DMF suspension of II reacts with Mn(II), Ni(II), Cd(II), Fe(III) and UO2(VI) ions and forms the polystyrene-anchored coordination compounds of the types, [PSCH2–LMn(DMF)3], [PSCH2–LNi(DMF)3], [PSCH2–LCd(DMF)], [PSCH2–LH2FeCl3] and [PSCH2–LHUO2(NO3)(DMF)]. We describe the syntheses and characterization of polystyrene-anchored thiazolidin-4-one, PSCH2–LH2 (II) and its coordination compounds with Mn(II), Ni(II), Cd(II), Fe(III) and UO2(VI) ions.
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