Preparation, characterization and kinetics of formation of some Schiff base chelates of Sn(II) and UO2(VI)

Article abstract of DOI:10.1080/00945710009351879

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.

Full text of DOI:10.1080/00945710009351879

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Synthesis and Reactivity in
Inorganic and Metal-Organic
Chemistry
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Preparation, Characterization
and Kinetics of Formation of
Some Schiff Base Chelates of
Sn(II) and UO2(V1)
Birgul Erk a , Abdulrezzak Dilmac a , Yakup Baran b &
Ayla Balaban b
a Gazi University, Art and Science Faculty,
Department of Chemistry , Teknikokullar, Ankara,
Turkey
b Karaelmas University, Art and Science Faculty,
Department of Chemistry , 67100, Zonguldak, Turkey
Published online: 23 Apr 2008.
To cite this article: Birgul Erk , Abdulrezzak Dilmac , Yakup Baran & Ayla Balaban
(2000) Preparation, Characterization and Kinetics of Formation of Some Schiff Base
Chelates of Sn(II) and UO2(V1), Synthesis and Reactivity in Inorganic and Metal-
Organic Chemistry, 30:10, 1929-1938, DOI: 10.1080/00945710009351879
To link to this article: http://dx.doi.org/10.1080/00945710009351879
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