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Synthesis of magnetite nanoparticles and their potential application in transition and platinum group metal ion extraction
(Stellenbosch : Stellenbosch University, 2007-03)
ENGLISH ABSTRACT: This thesis comprises of the following main sections:
Synthesis of magnetite nanoparticles
Parameters that are potentially important for the industrial-scale synthesis of magnetite nanoparticles ...
Carbene ligand and complex design directed towards application in synthesis and homogeneous catalysis
(Stellenbosch : Stellenbosch University, 2008-12)
Alkylated acetonitrile that forms during the synthesis of the sulfonium salt, [(Me3)2(MeS)S][BF4], is
involved in the formation of new , -unsaturated Fischer-type carbene complexes from
(CO)5M=C(OMe)CH2Li (M = Cr, W). ...
Separation of readily biodegradable aminocarboxylate complexes by electrodriven methods
(Stellenbosch : Stellenbosch University, 2008-03)
ENGLISH ABSTRACT: Aminopolycarboxylic acids (APCAs) are chelating agents widely used to inactivate
various metal ions by complex formation in industrial and household applications.
Ethylenediaminetetraacetic acid (EDTA) ...
Reactions of gold(I) electrophiles with nucleophiles derived from group 6 Fischer-type carbene complexes
(Stellenbosch : University of Stellenbosch, 2003-04)
ENGLISH ABSTRACT: This study comprises the preparation and characterisation of various novel
organometallic species of gold(I) by employing a range of anionic group 6 metal
Fischer-type carbene complexes and group 6 ...
A DFT study of the catalytic hydrocyanation of ethylene with nickel complexes
(Stellenbosch : Stellenbosch University, 2005-12)
ENGLISH ABSTRACT: DFT calculations employing the B3LYP functional were done to investigate the mechanism for the Ni-catalyzed hydrocyanation of ethylene as proposed by Tolman. Although this reaction is an important industrial ...
The cyclotron production of selected radionuclides using medium energy protons
(Stellenbosch : Stellenbosch University, 2008-03)
ENGLISH ABSTRACT: Radiochemical research involving ion exchange chromatography is of paramount
importance to the future of radionuclide production at the Radionuclide Production
Group (RPG) of iThemba LABS. It is required ...
A multinuclear magnetic resonance spectroscopy study of E/Z configurational isomers of unsymmetrical N-alkyl-N-alkyl(aryl)-N'-acylthioureas of platinum(II) complexes
(Stellenbosch : Stellenbosch University, 2006-12)
ENGLISH ABSTRACT: The partial double bond character of the carbon-nitrogen bond of the (S)C-NRR’ moiety results in unsymmetrical
dialkyl-substituted N-alkyl-N-alkyl(aryl)-N’-acylthioureas, R”C(O)NHC(S)NRR’ (HL) displaying ...
Use of the RAFT technique as an efficient method to synthesise well defined polymer-clay nanocomposites with improved properties
(Stellenbosch : University of Stellenbosch, 2009-03)
Synthesis and structural characterization of two novel cationic and three new neutral
reversible addition–fragmentation chain transfer (RAFT) agents is described. The
cationic RAFT agents bear a quaternary ammonium group: ...
Preparation of new rhodium and cobalt complexes as catalysts for hydroformylation studies
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: Please refer to full text for abstract
Environmental electrochemistry of organic compounds at metal oxide electrodes
(Stellenbosch : Stellenbosch University, 2004-12)
ENGLISH ABSTRACT: This study investigates the electrochemical oxidation of phenol. Phenol is a major toxin
and water pollutant. In addition, during water treatment it reacts with chlorine to produce
carcinogenic ...