%0 Journal Article
%T Analytical, Spectral, Thermal and Molecular Modeling Studies of Hg<sup>2+</sup>-2,3-Butanedionemonoxime Girard¡¯s T Hydrazone Complex and Its Application
%A Najlaa S. Al-Radadi
%A Magda M. Akl
%A Mohamed A. Elbeshlawi
%A Mohsen M. Mostafa
%J Open Journal of Inorganic Chemistry
%P 1-14
%@ 2161-7414
%D 2016
%I Scientific Research Publishing
%R 10.4236/ojic.2016.61001
%X The coordination behavior of 2,3-butanedionemonoxime Girard¡¯s T hydrazone (L<sup>1</sup>) towards Hg<sup>2+</sup> ion has been investigated. The structure of Hg<sup>2+</sup> complex, [Hg(L<sup>1</sup>)Cl]Cl¡€5H<sub>2</sub>O, is elucidated using elemental analyses, spectral (IR, UV-visible, 1H-NMR and mass) and TGA measurements. IR spectrum suggests that L<sup>1</sup> behaves in a bidentate manner through the azomethine groups. The molecular modeling of L<sup>1</sup> and its Hg<sup>2+</sup> complex has been investigated. The bond lengths, bond angles, HOMO and LUMO have been calculated. The thermal behavior and kinetic parameters are determined using Coats-Redfern method. The use of L<sup>1</sup> for preconcentration and separation via flotation of Hg<sup>2+</sup> complex and determination using cold vapor atomic spectrometry (CVAAS) is described. The effects on the percentage of recovered Hg<sup>2+</sup> by pH of sample solutions, oleic acid (HOL) concentration, Hg<sup>2+</sup> and L<sup>1</sup> concentrations are studied in details. The method is applied for the determination of the total Hg<sup>2+</sup> (mg¡€mL<sup>-1</sup>) in natural water samples.
%K Mercury Complex
%K 2
%K 3-Butanedionemonoxime Girard¡¯s T Hydrazone
%K Modeling
%K Spectral Studies
%K Separation Using Flotation Method
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=62558