Dioxouranium(VI) Complexes of Some Bivalent Tridentate Schiff-base Ligands Containing ONS Donor Set
Didarul A. Chowdhury, Mohammad N. Uddin, and Farhana Hoque* Author for corresponding; e-mail address: nasiru_cu@yahoo.com
Volume: Vol.37 No.3 (SEPTEMBER 2010)
Research Article
DOI:
Received: 4 January 2010, Revised: -, Accepted: 20 May 2010, Published: -
Citation: Chowdhury D.A., Uddin M.N. and Hoque F., Dioxouranium(VI) Complexes of Some Bivalent Tridentate Schiff-base Ligands Containing ONS Donor Set , Chiang Mai Journal of Science, 2010; 37(3): 443-450.
Abstract
Several new dioxouranium(VI) complexes of Schiff bases [LH2], derived from salicylaldehyde, substituted salicylaldehydes, 2-hydroxy-1-naphthaldehyde and 2-aminothiophenol, have been prepared and characterized on the basis of their elemental analyses, IR and electronic absorption spectra and magnetic susceptibility measurements. The results suggest that each Schiff base is a bivalent anion with tridentate ONS donors from the phenolic oxygen, azomethine nitrogen and thiophenolic sulfur. The formulae were found to be [UO2L]2 for the 1:1 non-electrolytic complexes and a six-coordinate dimeric structure has been proposed for the complexes.