Now showing items 1-6 of 6
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 = ...
Studies directed at the stereoselective synthesis of flavonoids through the hydrogenation of prochiral precursors
(University of the Free State, 2008-11)
English: The in vitro studies of biologically active flavonoids are hampered by the inaccessibility of all monomeric units in enantiomerically pure form. Although a number of these scalemic flavonoids can be obtained ...
Iridium carbonyl complexes as model homogeneous catalysts
(University of the Free State, 2010-05)
English: The aim of this study was to investigate model iridium carbonyl complexes as homogeneous catalyst precursors for processes such as olefin hydroformylation. The hydroformylation of alkenes is one of the most ...
Ferrocene-containing β-diketones derived from lactones: synthesis, complexation with rhodium(I), electrochemistry and substitution kinetics
(University of the Free State, 2016)
English: New ferrocene-containing β-diketones of the form FcCOCH2CO(CH2)nOH (Fc = ferrocenyl) where n = 3 [pKa' = 5.97], 4 [pKa' = 8.01] and 5 [pKa' = 10.44] were prepared by the Claisen condensation of acetyl ferrocene ...
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 ...
Silver(I) complexes as model catalysts in olefin hydroformylation
(University of the Free State, 2007-11)
English: The aim of this study was to synthesize Ag(I) complexes of the type [AgXLn] (L = tertiary phosphine; n = 1-4; X = coordinating or non-coordinating anion) and explore the olefin hydroformylation activity and ligand ...