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Now showing items 31-40 of 59
Use of the N,N-dialkyl-N’-benzoyl(thio)selenoureas as single source precursors for the synthesis of semiconducting quantum dots
(Stellenbosch : Stellenbosch University, 2008-12)
The successful preparation and structural characterization of a number of N,N-dialkyl-N’-benzoyl(thio)selenourea
ligands is described; where the intermolecular interactions are characterized by the presence of Resonance ...
Carbene and coordination complexes of gold, palladium, platinum and manganese derived from N-containing heterocycles
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT:
Please refer to fulltext for abstract
High resolution NMR studies concerning the solvation/hydration and coordination chemistry of Pt (II/IV) compounds
(Stellenbosch : Stellenbosch University, 2005-12)
ENGLISH ABSTRACT: Pt(JV) complexes with S, 0-donating aroylthioureas have been synthesized by oxidative addition of
elemental halogens to the Pt(JJ) precursors, leading to the first-reported crystal structures of Pt(JV) ...
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) ...
Oxazoline directed lithiation of Calix[4]arene and Ferrocene
(Stellenbosch : Stellenbosch University, 2011-12)
ENGLISH ABSTRACT: The use of chiral oxazoline directed lithiation provides a highly diastereoselective (up to >99%
de) route to meta functionalised inherently chiral calixarenes. This methodology can be used on
both the ...
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 ...
Investigation into the semiochemical communication involved in neonatal offspring recognition in sheep
(Stellenbosch : University of Stellenbosch, 2010-03)
ENGLISH ABSTRACT:
Sheep husbandry substantially contributes to South Africa’s economy. Lamb
mortality is regarded as a major constraint to sustainable sheep production, and an
important factor in lamb survival is the ...
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 ...