title: Synthesis, X-ray crystallography, thermal studies, spectroscopic and electrochemistry investigations of uranyl Schiff base complexes.
abstract: Some tetradentate salen type Schiff bases and their uranyl complexes were synthesized and characterized by UV-Vis, NMR, IR, TG, C.H.N. and X-ray crystallographic studies. From these investigations it is confirmed that a solvent molecule occupied the fifth position of the equatorial plane of the distorted pentagonal bipyramidal structure. Also, the kinetics of complex decomposition by using thermo gravimetric methods (TG) was studied. The thermal decomposition reactions are first order for the studied complexes. To examine the properties of uranyl complexes according to the substitutional groups, we have carried out the electrochemical studies. The electrochemical reactions of uranyl Schiff base complexes in acetonitrile were reversible.
authors: Chemistry Department, College of Sciences, Shiraz University, Shiraz, Islamic Republic of Iran. zasadi@shirazu.ac.ir
authors: Zahra
authors: Z
authors: Asadi
authors: Mohammad Ranjkesh
authors: MR
authors: Shorkaei
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D055664:Electrochemical Techniques; D005029:Ethylenediamines / Q000138:chemical synthesis / Q000737:chemistry; D008958:Models, Molecular; D010084:Oxidation-Reduction; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry*; D013057:Spectrum Analysis; D013696:Temperature; D013818:Thermogravimetry; D014501:Uranium / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D005029:Ethylenediamines; D012545:Schiff Bases; D014501:Uranium; C011452:disalicylaldehyde ethylenediamine