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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
This dissertation studies the size- and site-dependent optical and magnetic properties of II-VI quantum dots (QDs). The first chapter provides a theoretical background used to analyze the data and the properties expected for diluted...
The impetus of this research was the synthesis and characterization of new Mg-based hydrogen storage materials. Synthetic methods included metal fluxes, distillations and traditional stoichiometric melts. Pure Mg or Mg-X (X=element other...
Asphaltenes are a solubility defined class of crude oil compounds that precipitate from solution upon normal alkane addition. They are experimentally investigated due to their tendencies to cause refinery issues. Their ability to...
Molten metal fluxes are useful in materials synthesis. Dissolution in molten metal activates reactants at temperatures well below their melting point. Lower temperatures and the modified energetics in a flux increase the possibility of...
Intramolecular reductive coupling of enones bearing an unsaturated ketone, ester or nitrile was carried out under radical conditions. Upon exposure of these enone derivatives to tri-n-butyltin hydride in presence of AIBN, tin enolates...
Polymers are a group of materials composed of molecules which have long sequences of atoms linked to each other by covalent bonds. They have existed in natural forms since life began; however, in 1910 Leo Baekeland produced bakelite, a...
The synthesis and characterization of two types of ruthenium(II) complexes designed to give redox-active self-assembled monolayers (SAMs) via the thiol-on-gold route are presented here. The first of these complexes is based on the...
The formation of stable bound wave packets is studied in a modified Belousov-Zhabotinsky reaction. These densely stacked structures arise from an attractive interaction between oxidation pulses that is not known from the classical...
Chromatography, as a separation technique, has received wide acceptance and achieved widespread application. Reversed-phase liquid chromatography (RPLC) is a versatile separation mode utilized in biotechnology, pharmaceutical and other...
The growing environmental concern over carbon dioxide emission has driven the demand for next-generation green vehicles like electric vehicles (EVs) and hybrid electric vehicles (HEVs). This in turn calls for higher capacity and higher...
Zeolite structures consist of a negatively charged, porous, aluminosilicate framework with the ability to ion exchange its charge balancing cations. However, problems associated with traditional methods of aqueous ion exchange can...
Recent interest in designing multifunctional transition metal complexes that incorporate the redox-active tetrathiafulvalene (TTF) molecule stems from the perspective of embedding specific localized properties of transition metal ions...
The use of targeted-dye-labeling to probe environs within larger microenvironments is a powerful tool to elucidate the structure and function of specific components in materials. Combining site-specific dye-labeling with optical...
Extraction, Chromatograhic Separation and Characterization of Polar Acidic Species in Crude Oils and Naphthenate Deposits by Ultrahigh Resolution Fourier Transform Ion Cyclotron Resonance Mass Spectrometry
Throughout human history, societies have always had the quest to harness the energy sources nature has provided. The discovery of fire, by humans was the most significant step into human civilization. Fire provided light and heat, to...
Reversed-phase liquid chromatography (RPLC) is the most popular analytical technique for separating complex mixtures. The most common stationary phases used are octadecyldimethyl (C18) phases with silica as the solid support. Although...
High Performance Liquid Chromatography (HPLC) is the most widely used technique for the separation and identification of components in complex liquid samples. From groundwater to biological fluids, HPLC dependably provides efficient...
Roseophilin is an ansa-bridged potent cytotoxic compound that has generated continual interest from synthetic chemists since its discovery in 1992. As a synthetic target, roseophilin's most difficult challenge is the construction of the...
The next generation of sensors built upon nanotechnology is rapidly coming to the forefront of scientific applications, with particular application to contemporary global concerns including counterterrorism and device miniaturization....
In this work, various transition and main group metals were heated in a low temperature molten sulfur/iodine flux to produce metal sulfides and metal sulfide iodides, in a one-pot synthesis method that eliminates the use of toxic or...
Liquid chromatography is one of the most widely used analytical techniques for the separation of complex mixtures. Great advances have been made in the last twenty years in column technology, i.e. stationary phases, but few advances have...
This dissertation outlines how the optical properties of InP quantum dots were improved by microwave synthetic techniques, how CdSSe alloy quantum dots were determined from a single source precursor, and how specific regions of CdSe...
Reversed-phase liquid chromatography, RPLC, continues to be one of the most widely used techniques in the fields of separation and quantitative analysis of complex samples. With the advancement in column technology, faster and more...
Despite their discovery during the 1940's, there are still many unanswered questions surrounding the elements past uranium, or transuranic elements. In the recent years more evidence is emerging that suggest the bonding and structure of...
The main goal of this research was to explore molten salts as growth media for the synthesis of new materials. The molten salt systems investigated in this work were ionic liquids and eutectic mixtures of metal halide salts. The primary...
Self-organization in reaction precipitation systems occurs in many physical, chemical, biological, and geological systems. In particular, chemical reactions provide a wealth of examples for this intriguing process. Permanent tubular...
We have synthesized stable, highly luminescent silica xerogels as well as optically transparent, stable aerogels that were embedded with 2.5 nm and 6 nm CdSe and 6 nm InP quantum dots. By capping the quantum dot with 3...
Characterization of Naturally Occurring Surface- and Interface-Active Molecules in Petrochemicals by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry
High-resolution electrospray ionization Fourier Transform Ion Cyclotron Mass Spectrometry (ESI FT-ICR MS) is a robust method for identifying polar nitrogen, sulfur, and oxygen (–NSO) containing compounds in naturally occurring complex...
The removal of non-coding sequences, or introns, from precursor messenger (m)RNAs and the ligation of coding sequences, or exons, a process called pre-mRNA splicing, is an essential step in gene expression. The spliceosome is the...
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