Browsing School of Chemistry and Physics by Title
Now showing items 306-325 of 700
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Kinematics and dynamics of the elliptical galaxy NGC 5266.
(2005)In studies of triaxial elliptical galaxies, one of the least observationally studied phenomena is figure rotation. Figure rotation has important consequences for the orbital structure and could explain the survival of steep ... -
A kinetic and equilibrium study of rooibos tea infusions.
(1998)The total mineral ion concentration of Rooibos Tea was determined using ICP-OES. Significant concentrations of Na, K, Mg, Ca, P were found, and trace levels of Al, Fe, Mo, Sr, Zn, Ba, Cu and Pb detected. Protocatechuic ... -
A kinetic and mechanistic study into the substition behaviour of Plantinum (II) Polypyridyl complexes with a series of Azole Ligands.
(2010)A novel platinum(II) complex, [Pt{4-(o-tolyl)-6-(3˝-isoquinoyl)-2,2´-bipyridine}Cl]SbF6 (Pt4) was synthesized and characterised by means of infrared, elemental analysis, mass spectroscopy, and NMR spectroscopy. Substitution ... -
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 ... -
A kinetic and mechanistic study of dinuclear platinum (II) complexes with bis-(4'-terpyridyl)-a,w-alkyldiol ligands.
(2012)A series of novel Bis 2,2':6',2″-terpyridinyl ligands, linked through a flexible alkyl chain situated at the 4' position, were synthesised and characterised by microanalysis, FTIR, NMR, UV-Visible spectroscopy, and MS-ToF. ... -
A kinetic and mechanistic study on the substitution behaviour of mononuclear and dinuclear platinum (II) complex.
(2013)Abstract available in PDF file. -
Kumada and liebeskind-srogl coupling of aryl thiosulfonates as electrophilic coupling partners in the synthesis of biaryls.
(2021)The need and desire for versatility and diversity in cross-coupling reactions was the drive for the studies conducted in this thesis. Traditionally, transition-metal catalyzed crosscoupling reactions have heavily relied ... -
L and R mode electromagnetic instabilities in space plasmas having kappa velocity distributions.
(2014)Abstract available in PDF file. -
Laser applications and refractive properties of non-homogeneous gas distributions.
(1995)No abstract available. -
Layered double hydroxides : synthesis and application in gene delivery to mammalian cells in culture.
(2010)Layered double hydroxides (LDHs) or hydrotalcite-like compounds (HTLcs) are classified as anionic clays in which their structure is based upon brucite and are represented by the following general chemical formula: [MII1-xMIII ... -
Linear and nonlinear electron-acoustic waves in plasmas with two electron components.
(1991)Measurements of broadband electrostatic wave emIssons in conjunction with particle distributions in the earth's magnetosphere, have provided motivation for a number of studies of waves in plasmas with two electron components. ... -
Linear and nonlinear fluctuations in electron-positron plasmas.
(2009)The behaviour of both small amplitude and arbitrary amplitude nonlinear electrostatic fluctuations are studied in electron-positron plasmas. The propagation characteristics of associated linear modes are also examined ... -
Linear and nonlinear fluctuations in multicomponent plasmas applied to magnetospheric environments.
(2015)In this thesis, we discussed the linear and nonlinear effects in multicomponent plasmas. By multicomponent, we refer to electron-positron-ion and electron-positron-dust type plasmas. The linear electrostatic waves in ... -
Linear and nonlinear waves in space plasmas.
(2014)The work presented in this thesis is about a study of some linear and nonlinear plasma waves. Firstly, a kinetic-theoretical approach is used to study ion Bernstein waves in an electron-proton plasma with a kappa velocity ... -
Linear properties of the cross-field ion acoustic instability in a double plasma device.
(1990)This thesis deals with the dependence of the linear spatial growth rate of the cross-field ion acoustic instability on various plasma parameters. A kinetic theory model, with elastic and inelastic ion-neutral collisions ... -
The liquid-liquid extraction of Germaniun with the 7-alkylated 8- hydroxyquinoline derivative - KELEX 100.
(1990)Germanium can be extracted from aqueous solutions by KELEX 100 dissolved in an appropriate diluent. KELEX 100 is a commercially available chelating extractant containing the active constituent 7-(4ethyl-l-methyloctyl) ... -
Low frequency electrostatic instabilities in a two-dust component plasma.
(1999)The kinetic dispersion relation for a magnetized dusty plasma comprising of ions, electrons and massive, charged dust particles is solved for low frequency electrostatic instabilities in the dust plasma frequency ... -
Magnetic properties of Mg₁-xZnxFe₂O₄ nanoferrites and tetracycline-ferrite nanocomposites.
(2013)Abstract available in print copy.