Chemistry
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A Theoretical and Synthetic Investigation of New Donors for Organic Electro-Optic Chromophores: Understanding the Effects of Structure and Substituents on Donor Strength
Understanding of the intricate connection between shape, structure and property has al- lowed many challenges facing the adoption of organic chromophores for electro-optic (EO) applications to be overcome. Still, there is ... -
It’s a Trap! Unravelling Reversible Charge Trapping in Nanocrystals Through Single Particle and Ensemble Studies
Copper containing semiconductors such as copper-doped ZnS and CuInS2 are classic phosphors materials that have had wide general use for decades. The photophysical processes of these bulk materials have been well studied. ... -
Palladium-Catalyzed Cross-Couplings of 2-Alkylaziridines and Alkenylboronic Acids
A new method to synthesize substituted homoallylic amines is reported. Homoallylic amines are important structural moieties in natural products and pharmaceutical agents. The reaction couples N-nosyl-2-alkylaziridines with ... -
Positive Encounters: An Investigative Study on the Effects of Interactions between Cations and Quantum Dots
Semiconductor nanocrystals, also known as quantum dots (QDs), have gained much popularity in recent years not only in the researching community but also in general public. Within researching circles, there are many areas ... -
Insight into Biological Small-Molecule Activation from Enzymes, Model Complexes, and X-ray Spectroscopy
This dissertation covers the investigation of biological strategies for activating inert small molecules. Chapters 1 and 2 respectively present an introduction to some notable biological systems of interest and the X-ray ... -
Photochemical dynamics of laser-irradiated semiconductor nanostructures
Unique and novel applications of nanoscale materials are continuously being found. Applications span across many fields, including medicine, physics, chemistry, and engineering. Properties of nanoparticles are commonly ... -
Investigation of the Nucleation and Growth of Colloidal Indium Phosphide: from Molecular Precursors to Semiconductor Nanocrystals through In37P20(O2CR)51 as a Magic-Size Intermediate
Semiconductor nanocrystals have drawn a considerable amount of interest in recent decades from both academia and industry. These crystallites possess a unique property in which the energy of electromagnetic radiation ... -
The Redox Potentials of n-type Colloidal Semiconductor Nanocrystals
This thesis presents investigations for two related fields of semiconductor electrochemistry: redox potential determination of colloidal semiconductor nanocrystals, and mechanistic analysis of photoelectrochemical water ... -
Investigating the Effect of Histone H4 Sumoylation on Chromatin Structure and Function
The packaging of DNA within the nucleus of a eukaryotic organism is facilitated by the formation of a nucleoprotein complex known as chromatin. There are various DNA binding proteins that play an important part in this ... -
Characterization of the Structure and Dynamics of Biomimetic Peptides by Solid-State NMR
Diatoms and sponges use proteins, long chain polyamines, and other biomolecules to assemble silica structures of controlled morphology. Investigated here are biosilicification peptides. Under mild conditions, these peptides ... -
Development and Application of Improvements to the Tile-based Fisher Ratio Method and Fundamental Instrument Considerations for Non-targeted Analysis using Two-dimensional Gas Chromatography
Comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry GC×GC–TOFMS has arguably made possible the largest increase in gas chromatograph performance since the innovation of the wall-coated ... -
The Discovery, Development, and Mechanistic Investigations of Transition Metal-Catalyzed Organic Reactions
Organic reactions have wide spread applications in drug development, chemical biology, and materials science. However, traditional chemical techniques can be inefficient i.e., low yields and/or poor selectivity, for ... -
Towards Accurate and Efficient Description of Excited States
The microscopic and molecular-level characterization and understanding of excited states properties and dynamics plays an important role in modern scientic research. Tremendous examples can be found in photovoltaics, ... -
Facilitating Realistic and Efficient Applications of Ab Initio Electronic Dynamics for Polyatomic Systems
Tremendously useful insights for the design and development of nano-scale systems, e.g. photovoltaics devices, can be gained from studying molecular process and reactions using \textit{ab initio} electronic dynamics, i.e. ... -
Platinum(II) olefin hydroarylation catalysts: tuning selectivity for the anti-Markovnikov product Tandem catalytic ester hydrogenation and deoxygenation of polyethylene terephthalate
PtII complexes bearing unsymmetrical pyridyl-pyrrolide ligands are shown to catalyze the hydroarylation of unactivated alkenes with high selectivity for the anti-Markovnikov product. Substitution on the pyrrolide portion ... -
Gaseous Studies of Ionic Chromophores and Peptide Cation Radicals Generated from Electron Transfer
University of Washington Abstract Gaseous Studies of Ionic Chromophores and of Peptide Cation Radicals Generated from Electron Transfer Robert H. Pepin Chair of the Supervisory Committee: Professor František Tureček ... -
Adsorption and adhesion energies of metal films and nanoparticles studied by adsorption calorimetry: understanding catalytic systems
Metal nanoparticles dispersed across solid surfaces form the basis of many important technologies such as heterogeneous catalysts, electrocatalysts, chemical sensors, microelectronics, and fuel cells. Understanding ... -
Structure Function Paradigms of Organic Electrooptic Materials
Organic Electrooptic Materials have been demonstrated and commercialized as active com- ponents in telecommunications systems. Application of organic materials to electrooptic switching devices could result in large gains ... -
Local Imaging of Optoelectronic Properties and Film Degradation in Polymer/Fullerene Solar Cells with Electrostatic Force Microscopy
With power conversion efficiencies on the rise, organic photovoltaics (OPVs) hold promise as a next-generation thin-film solar technology. However, both device performance and stability are inextricably linked to local ... -
Investigations of the Pup-Proteasome System in Mycobacterium tuberculosis
Protein degradation via the proteasome is essential for full virulence of the pathogen Mycobacterium tuberculosis. The enzyme PafA regulates degradation by the conjugation of prokaryotic ubiquitin-like protein (Pup) to ...
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