Chemistry
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The design of rhodium and ruthenium catalysts for asymmetric aldol coupling.
(1992)Abstract available in PDF. -
Chemistry of ruthenium derivatives of the 2-diphenylphosphinoquinoline ligand.
(1993)Abstract available in PDF. -
Dinuclear complexes of copper, silver and gold bridged by phosphoruspyridyl and phosphorusnaphthyridyl ligands.
(1995)Chapter 1 setves as an introduction to the synthesis and characterisation of copper(!), silver(!) and gold(!) complexes of the 2,6-bis( diphenylphosphino )pyridine { (Ph2P)2py}, phenylbis(2- pyridyl)phosphine {PhP(py)2 ... -
Isolation and characterisation of bioactive compounds from antidesma venosum E.Mey. ex Tul. and euphorbia cooperi N.E.Br. ex A.Berger.
(2018)The need for the discovery of new pharmacologically active compounds is a global priority as new diseases and drug resistance mechanisms are emerging and spreading throughout the world. In the past natural products have ... -
Base-Free Suzuki acylation reactions of sodium (aryl trihydroxyborate) salts: a novel synthesis of substituted aryl ketones.
(2018)Asymmetric biaryl ketones are important building block in organic chemistry since they occur in large number of biological active compounds, natural product, cosmetics as well as in organic synthesis. The aim of this project ... -
Synthesis, characterization and evaluation of ionic liquids and polymeric ionic liquids/functionalized multiwalled carbon nanotubes for Cr(VI) adsorption.
(2019)In this study, a series of imidazolium and pyridinium-based ionic liquids (ILs), polymeric ionic liquids (PILs), and their carbon nanotubes-functionalized composites were synthesized, characterized and applied as potential ... -
Method development and application for the determination of polycyclic aromatic hydrocarbons (PAHs) in KwaZulu-Natal, South Africa.
(2018)This work involved the analysis of PAHs under optimized conditions of gas chromatographymass spectrometry (GC-MS) method and after extracting by optimised ultrasonic extraction (USE) (for sediment samples) and solid phase ... -
Synthesis structural and optical studies of copper sulphide and silfide nanoparticles from Cu(II) and Ag(I) dithiocarbamate single source precursors.
(2018)Eight dithiocarbamate ligands were synthesized from butylamine, diallylamine, N-ethyl aniline, N-methyl benzyl amine, piperidine, morpholine, dibenzyl amine and phenyl piperizine. Eight copper(II) dithiocarbamate complexes ... -
Method development and application: solid phase extraction (SPE), ultrasonic extraction (UE) and soxhlet extraction (SE) for the analysis of pesticides in water, soil, sediment and sludge.
(2019)Ultrasonic extraction (UE), Soxhlet extraction (SE) and solid phase extraction (SPE) have been developed and applied for the simultaneous determination of the five most commonly used triazine pesticides. The extraction ... -
Synthesis of nitrogen-, oxygen- and phosphine- donor palladium(II) complexes for the catalytic hydrogenation and methoxycarbonylation of alkenes and alkynes.
(2019)Reactions of N-(1H-benzoimidazol-2-ylmethyl-2-methoxy)aniline (L1) and N-(1H-benzoimidazol-2-ylmethyl-2-bromo)aniline (L2) with p-TsOH, Pd(AOc)2 and two equivalents of PPh3 or PCy3 produced the corresponding palladium ... -
An instrumental evaluation of selected metal functionalised semiconductors in the facilitation of photo-organic transformations.
(2019)Throughout this research study, various strategies to design, synthesise and test the photo-reactivity of attenuated wide band gap semiconductors in alcohol oxidation studies have been explored. An alizarin red-sensitised ... -
The Carbamate group : migrational and leaving properties : towards the synthesis of flavenes.
(1996)Abstract available in PDF. -
Synthesis, characterisation and antibacterial activity of substituted 2-quinoline thiosemicarbazones.
(2017)Fifteen quinoline-2-thiosemicarbazone hybrid derivatives were synthesised in a three step reaction involving formation of the quinoline, oxidation of the 2-methyl group and condensation to the thiosemicarbazones. The ... -
The rates and mechanisms of substitution from Ru(II) complexes with different non-leaving ligand environments.
(2019)Results from multiple studies have confirmed that the nature of ligands on the metal centre determines the properties of an anti-cancer agent in a biological environment. Ligands affect solubility, substitution reactivity, ... -
Understanding the reactivity of ruthenium (II) complexes kinetics and mechanistic studies.
(2019)Abstract available in pdf. -
A kinetic and mechanistic study of cyclic amine functionalized platinum(II) complexes with bio-relevant nitrogen nucleophiles.
(2018)In this study, four square-planar platinum(II) complexes were synthesized namely C1S1, C2S1, C3S1 and C4S1. The novel platinum(II) complex (C4S1) was synthesized using methods detailed in Chapter 4 and characterized using ... -
Calibration techniques for 21-cm experiments with application to HERA: quasi-redundant calibration analysis.
(2018)Upcoming 21 cm observations promise to open a new window in our understanding of the universe from the epoch of recombination down to redshift of z 1. However, measurements of 21 cm signals come at a high cost since ...
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