Browsing Department of Chemistry Graduate Theses by Publish Date
Now showing items 1-20 of 304
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Chemical Reaction Dynamics and Coincidence Imaging Spectroscopy
(2007-07-05)This thesis describes and develops two experimental techniques, Time Resolved Photoelectron Spectroscopy (TRPES), and Time Resolved Coincidence Imaging Spectroscopy (TRCIS), to study ultrafast gas phase chemical dynamics. ... -
Ringdown spectroscopy in optical waveguides
(2007-07-05)Ringdown spectroscopy (RDS) is an absorption spectroscopic and detection technique that makes use of an optical cavity to realize a long effective pathlength through a sample and to render the measurement independent of ... -
Study of pre-evaporation and matrix effects on multi-elemental analysis by ICP-TOFMS
(2007-07-19)The ultimate goal of this project was to improve the sensitivity and detection limits of inductively coupled plasma time-of-flight mass spectrometry (ICP-TOFMS) and then apply it to the speciation analysis of As. To this ... -
Synthesis and photoluminescent properties of linear and starburst compounds based on benzimidazole, 2-(2'-pyridyl)benzimidazole and 2,2'-dipyridylamine
(2007-08-02)The objective of this thesis was to explore the chemistry of series of linear and star shaped compounds based on benzimidazolyl, 2-(2’-pyridyl)benzimidazolyl, and 2,2’-dipyridylamino functional groups. These groups all ... -
Cucurbit[n]uril host-guest complexes: the effects of inclusion on the chemical reactivity and spectroscopic properties of aromatic guest molecules
(2007-08-09)This thesis deals primarily with supramolecular chemistry based on cucurbit[n]uril (CB[n], n = 7 and 8) host molecules. The research has been focused on the synthesis and characterization of host-guest complexes CB[n] ... -
Directed ortho metalation-boronation Suzuki-Miyaura cross coupling leading to synthesis of azafluorenol core liquid crystals
(2007-08-13)The synthesis of chiral fluorenol crystal materials employing directed ortho metalation (DoM) combined with directed remote metalation (DreM) and Suzuki-Miyauara Coupling was previously reported by McCubbin, Snieckus and ... -
Novel group 6 complexes of cyclopentadienylidene ylides
(2007-09-12)Abstract Methyldiphenylphosphonium cyclopentadienylide, C5H4PMePh2 (II), has been synthesized and characterized spectroscopically and crystallographically, and has been found to exhibit properties consistent with the ... -
Transition metal catalyzed hydroborations with pinacolborane: new applications and mechanistic investigations
(2007-09-12)A methodology for the catalytic asymmetric hydroboration of vinylarenes with pinacolborane has been developed. Use of pinacolborane in hydroboration, especially catalytic asymmetric hydroboration grants direct access to ... -
A Study of Rhodium Catalyzed Hydroborations and Sulfur ylide Epoxidations
(2007-09-17)A rhodium-catalyzed process has been developed in which mixtures of internal and terminal olefins are isomerized and hydroborated in one step yielding the corresponding terminal pinacolboronates. Homologation and subsequent ... -
A study of the conformational distribution of substituted 2,2'-spirobiindan-1,1'-diones in ferroelectric liquid crystals
(2007-09-28)Ferroelectric liquid crystals (FLCs) exhibit a bulk electric polarization (PS) that can be coupled to an electric field to produce an ON-OFF light shutter, and are being investigated as an alternative to nematic liquid ... -
A MATRIX ISOLATION SPECTROSCOPIC INVESTIGATION OF THE REACTION PRODUCTS OF TRANSITION METAL CENTRES WITH ETHENE AND WATER
(2007-11-16)The reaction products of thermally generated atomic V with ethene and ethene isotopomers have been investigated by matrix isolation ultraviolet visible and Fourier transform infrared (FTIR) spectroscopy. When V is deposited ... -
AN EFFECT-DRIVEN FRACTIONATION APPROACH FOR THE ISOLATION AND CHARACTERIZATION OF CYP1A INDUCING COMPONENTS OF CRUDE OILS
(2007-11-26)Exposure to crude oils has been shown to induce CYP1A enzymes and cause chronically toxic effects in aquatic organisms. Earlier studies indicated that polycyclic aromatic hydrocarbons (PAHs) present in crude oil are primarily ... -
The development of sulfamates as latent directed metalation groups. Total synthesis of schumanniophytine. Divergent synthesis of substituted chromone 3- and 8-carboxamides.
(2007-12-04)N,N-Diethyl-O-sulfamate (OSO2NEt2) has been established as a new directed metalation group (DMG). Its similarity to the established O-carbamate DMG has prompted investigation into its potential as a partner in transition ... -
A density-functional theory including dispersion interactions
(2007-12-04)The London dispersion interaction is responsible for attraction between non-polar molecules and is of great importance in describing structure and reactivity in many areas of chemistry. Dispersion is difficult to model ... -
HOST-GUEST COMPLEXATION BASED ON CUCURBITURILS
(2008-01-29)This thesis deals with the effects of host-guest complexation, based on cucurbit[n]uril (CB[n], n = 6, 7 and 8) host molecule, on the chemical, electrochemical and spectroscopic properties of the included guests. Both CB[6] ... -
Metal ion promoted hydrolysis of the organophosphorus pesticide diazinon
(2008-02-01)The chemical fate of organophosphorus pesticides is influenced by several factors, one being the chemistry of their aquatic environment. Dissolved metal ions have been shown in several instances to promote the hydrolysis ... -
Determination of platinum group elements in environmental samples using in-line mini-column pre-concentration and separation coupled to inductively coupled plasma mass spectrometry
(2008-02-05)A method for the determination of platinum group elements (PGEs) in natural tree samples was developed. An alumina column in-line with inductively coupled plasma mass spectrometry (ICP-MS) achieves the separation of ... -
Late and early transition metal-catalyzed homo and copolymerizations studies of olefins and polar monomers
(2008-03-03)The aims of this work were two-fold. The first part of this thesis involves the synthesis of the Brookhart’s diimine catalyst [Pd(N-N)Me(Et2O)]+ (1) (N-N = (2,6-(i-Pr)2C6H3)-N=CH2CH2=N-(2,6-(i-Pr)2C6H3)) and an ... -
Surface modification of poly(dimethylsiloxane) with a perfluorinated alkoxysilane for selectivity toward fluorous tagged peptides
(2008-01)Poly(dimethylsiloxane) (PDMS) and similar polymers have proved to be of widespread interest for use in microfluidic and similar microanalytical devices. Surface modification of PDMS is required to extend the range of ... -
A novel series of titanocene dichloride derivatives: synthesis, characterization and assessment of their cytotoxic properties
(2008-05-15)Although cis-PtCl2(NH3)2 (cisplatin) has been widely used as a chemotherapeutic agent, its use can be accompanied by toxic side effects and the development of drug resistance. Consequently, much research has been focused ...