328074-30-2Relevant articles and documents
Preparation, characterization and kinetics of formation of some Schiff base chelates of Sn(II) and UO2(VI)
Erk, Birgul,Dilmac, Abdulrezzak,Baran, Yakup,Balaban, Ayla
, p. 1929 - 1938 (2000)
The synthesis, characterization and formation kinetics of Sn(II) and UO2(VI) complexes of the nitrogen and oxygen donor ligands m-chlorophenylsalicylaldimine (Hcps), m-nitrophenylsalicylaldimine (Hnps), m-methoxyphenylsalicylaldimine (Hmps) and m-methylphenylsalicylaldimine (Hmsa) are reported. The structures of the free ligands and their Sn(II) and UO2(VI) complexes were determined by NMR, elemental analyses, IR and UV-Vis studies and magnetic susceptibility measurements. Under pseudo-first order conditions, having an excess of the Schiff base present, the kinetics of complex formation of Sn(II) and UO2(VI) with a series of Schiff bases was studied spectrophotometrically using the stopped-flow technique in methanol as solvent. The activation parameters ΔH# and ΔS# for the formation reactions of the complexes studied in methanol are almost identical which supports the assumption that the reactions have a common mechanism. The reactions are considered to proceed through an associative mechanism.