کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1236155 | 968862 | 2011 | 6 صفحه PDF | دانلود رایگان |
The title complexes were prepared and characterized employing spectral (FAB-Mass, IR, electronic, 1H and 13C NMR), thermal and electrochemical techniques. Analytical and FAB-Mass data suggested a homo-dinuclear stoichiometry. IR and electronic ligand field spectral studies coupled with molecular model computations have indicated a distorted octahedral geometry where the ligand coordinates as a hexadentate dianionic [H3DTPA]2−(H5DTPA = diethylenetriaminepentaacetic acid) moiety. The electrochemical redox properties and the antibacterial activities of the compounds were also investigated.
The homo-dinuclear complexes of [H3DTPA]2−(H5DTPA = diethylenetriaminepentaacetic acid) ligand were prepared, characterized employing spectral (FAB-Mass, IR, electronic, 1H and 13C NMR), thermal and electrochemical techniques and tested for antibacterial activities.Figure optionsDownload as PowerPoint slideResearch highlights
► The novel homo-dinuclear complexes of Cr2+, Mn2+, Co2+, Ni2+, and Cu2+ using dianionic ligand [H3DTPA]2− have been synthesized and characterized using various spectral, thermogravimetric and cyclic voltammetric techniques.
► The presence of coordinated and non coordinated (lattice) water molecules were ascertained from thermal studies (TGA).
► The spectral data suggest hexacoordinate distorted octahedral environment around the metal ion. The optimized geometry and the computed structural parameters were obtained employing molecular model computations.
► The cyclic voltammetric studies indicate the presence of quasi reversible CrII/I and CuII/I redox couples in the solutions.
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 78, Issue 5, May 2011, Pages 1386–1391