Browsing School of Chemistry and Physics by Title
Now showing items 469-488 of 700
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Radiating solutions with heat flow in general relativity.
(1994)In this thesis we model spherically symmetric radiating stars dissipating energy in the form of a radial heat flux. We assume that the spacetime for the interior matter distribution is shear-free. The junction conditions ... -
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, ... -
A ray tracing study of VLF phenomena.
(1997)Whistlers have, for many years, been used as probes of the ionosphere and magnetosphere. Whistlers received on the ground have been shown (Smith [1961], Helliwell [1965]) to have propagated, in almost all cases, through ... -
Reactions and reactivity of allyl and related carbamates.
(1997)Carbamate chemistry has flourished since the 1980's which saw the introduction of the carbamoyl group by Hoppe and co-workers, prominent researchers in this area, as a suitable moiety for the activation and stabilisation ... -
Reactions and reactivity of allylic and benzylic carbamates.
(1995)The purpose of this investigation was to study the effect of the carbamate group on the reactions and reactivity of substituted 1,1-diphenylmethane and a,ro-diphenyl allylic compounds. A series of carbamates were prepared ... -
The redox and co-ordination chemistry of some dinuclear diphosphazane- bridged derivatives of ruthenium.
(1991)Abstract available in pdf file. -
Reduction of aldehydes and ketones to their corresponding alcohols in 1-butyl-3-methylimidazolium tetrafluoroborate.
(2017)The use and release of volatile organic solvents (VOS) to the atmosphere have become detrimental to both human health and his environment. In addition, the non-recyclability and the excessive consumption of these solvents ... -
Refractive effects in phase objects and associated phenomena.
(1994)The effect of the refraction of a laser beam propagating through three different phase objects, i.e. a laser produced plasma and two different gas media, is investigated in this thesis. It is shown that these effects ... -
Review of solar energy inclusion in Africa : a case study of Nigeria.
(2017)This work reviews solar energy inclusion in Africa using Nigeria as a case study. It reviewed studies made on viability, challenges and solutions associated with making solar energy a viable energy option in Nigeria. ... -
Rhenium(I) and -(V) complexes of N-donor heterocyclic chelates.
(2016)Abstract available in PDF file. -
Rhodium-catalyzed and uncatalyzed synthesis of boronate esters and their subsequent utility in the Suzuki realm.
(2008)This study has shown that alkythioboranes 1,3,2-dithiaborolane and 1,3,2-dithiaborinane, disproportionated significantly during their synthesis. Their interaction with 1-octene has been investigated, and the rate constants, ... -
A robust air refractometer for accurate compensation of the refractive index of air in everyday use.
(2016)Abstract available in PDF file. -
The role of sodium silicate in newsprint deinking.
(2003)Mondi Ltd. operates a deinking plant at its Merebank mill. The plant recycles 85 000 tons per annum of flat news and magazine to produce a furnish for its newsprint papermachines. A review of the relevant pulping and ... -
Role of Substituents on the reactivity of mononuclear cis-platinum(II) complexes with 2 (phenylthiomethyl)pyridyl/quinolyl non-leaving ligands.
(2017)Abstract available in PDF file. -
Ruthenium and silver complexes of potentially binucleating phosphoruspyridyl and phosphorusbipyridyl ligands.
(1994)Abstract available in pdf file. -
Safety assessment of skin-lightening formulations commonly available in the Nigerian market.
(2016)Abstract available in PDF file.