Now showing items 1-2 of 2
Copper based nanomaterials for oxidation catalysis
(University of the Free State, 2009-11)
English: The aim of this study was the synthesis simple O,O-bidentate ligand copper complexes of the type [Cu(Memal)2], [Cu(Etmal)2], [Cu(Trop)2] and [Cu(TropBr3)2], where Memal = 2- methyl-3-hydroxy-4-pyrone, Etmal = ...
Speciation and interconversion mechanism of mixed halo O,O' - and N,O-bidentate ligand complexes of hafnium
(University of the Free State, 2009-04)
English: Hafnium and zirconium show extremely similar chemical properties and occur together in nature. Zirconium ore (commonly referred to as zircon) always contains 1 – 3% hafnium, and the separation of hafnium and ...