Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"photoreactivity"”.
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Lights, Camera, Reaction! The Influence of Interfacial Chemistry on Nanoparticle Photoreactivity
… seeks to investigate potential influences on photoreactivity – specifically the impact of functionalization, the influence of anions, and interactions with biological objects - so that ROS generation in natural aquatic environments may be better understood.</p><p>To this aim, titanium dioxide …
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Marsh-Exported Dissolved Organic Matter Fate in Estuaries
… a net heterotrophic system. However, the photoreactivity and bioavailability of marsh-exported DOM is largely uncategorized, thus making it difficult to quantify its impacts on estuarine dynamics.</p> <p>The photoreactivity and bioavailability of chromophoric and fluorescent dissolved …
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Explore the Formation of Triplet Nitrene - A Potential Intermediate for Building Organic Magnets
… have been investigated. The first one the photoreactivity of the triplet vinyl nitrene, which is considerably stable. We have successfully utilized two ways to form the triplet vinyl nitrene by photolyzing 2H-Azirines and vinyl azides. We also studied the photoreactivity of alkyl azides …
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Toward the photo-induced reductive elimination of halogens
… as potential platforms, and have shown efficient photoreactivity toward M-X bond activation.
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Synthesis and reactivity of α-diazosulfoxides and α-diazosulfones
… further under Rh catalysis and a study into the photoreactivity of the α-diazosulfoxides on flow was also performed.
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Estudio del comportamiento fotoquímico y electroquímico de yodoalquenos
… polycarbocycles and polyheterocycles. The photoreactivity mechanism of the vinyl iodides is studied by experimental methods such as quenching experiments, quantum yield determination, luminescence measurement and ion or radical trapping. In chapter 5, a brief overview of the electrochemical …
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Development of a new actinometric method for polychromatic light irradiation. Application to photochromes, drugs and stilbenoids
… the β factor, which is used to obtain the photoreactivity of the species, in a method that offers a much simpler and faster approach to this determination than traditional methods. The stilbenoids group shows higher photoreactivity than the other species studied according to the β factor …
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Chlorine dioxide photochemistry in solution: time-resolved resonance Raman and femtosecond pump-probe studies
… to ascertain the influence of environment on the photoreactivity of this compound. Specifically, the effect of solvent on dynamics associated with photoproduct formation, primary photoproduct geminate recombination, vibrational relaxation, and internal conversion is investigated. Following OClO …
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Ligand participation in energy storage electrocatalysis and photocatalysis
… of direct ligand reactivity in enhancing the photoreactivity of monomeric nickel complexes. Transient absorption (TA) spectroscopic studies reveal that the triphenylphosphine ligand of Ni halide hydrogen-evolving photocatalysts serves as the photosensitizer and as a redox mediator in what is …
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Discovering the Potential of Photoluminescent Ruthenium(II) Complexes as Photodynamic Therapy Agents
… the photophysical properties (Chapter 2), photoreactivity toward DNA and proteins (Chapter 3), and localization within cancer cells (Chapter 4) of ruthenium complexes that demonstrate promise as photodynamic therapy (PDT) agents. [(AnthbpyMe)(bpy)Ru(dpp)]2+ (1) and [(AnthbpyMe)2Ru(dpp)]2+ …
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SYNTHESIS, CHARACTERIZATION AND EVALUATION OF BIOACTIVE MOLECULES LINKED TO PHOTOREMOVABLE PROTECTING GROUPS FOR SPATIO-TEMPORAL CONTROL OF THEIR ACTIVITY THROUGH PHOTOACTIVATION
… all new derivatives showcase excellent photoreactivity, in particular the compound containing a CF3 which demonstrated to have a significant superior quantum yield (Qu) value. We subsequently explored substitution at position 3, introducing different substituents of diverse electronic …
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Selective excitation of adsorbate vibrations on dissipative surfaces
… vibrations is a powerful tool to control the photoreactivity prior to electronic excitation in the ultraviolet / visible (UV/Vis) light regime ("vibrationally mediated chemistry"). For adsorbates on surfaces it has been theoretically predicted that IR preexcitation will lead to higher UV/Vis …
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Second-site inhibitors of the estrogen and androgen hormone receptors
… azastilbenes were synthesized and their photoreactivity in the solid and solution states explored as detailed in chapter 4. The results from these experiments demonstrated a quantitative link between the pi-stacking ability of the azastilbenes (as determined by high-level quantum …