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 10 of 10 for “"radical recombination"”.
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Primary Photoproducts and the Mechanism of Ligand Substitution in the Photochemistry of Dinuclear Metal Carbonyls
… The second-order rate constant for radical recombination was measured and determined to be (8.0 (+OR-) 0.6) x 10('8) M('-1) s('-1). The second-order rate constant for CO recapture was found to be (4.4 (+OR-) 0.4) x 10('3) M('-1) s('-1).
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On the stereochemical course of the chlorine-38 for chlorine substitution in diastereomeric and enantiomeric compounds
… experimental results seem to indicate that the radical-radical recombination mechanism is the most likely mechanism as compared to the hot one-step substitution process, they offer no conclusive distinction between these two mechanisms. It appears that strong intermolecular interaction favors …
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Potential PFAS products from thermal decomposition of munitions: a DFT analysis of pyrolysis products of fluoropolymers in the presence of energetic compounds
… but the major pathways involve the formation of radicals and extreme heat. Despite the extreme recalcitrance of fluoropolymers, the conditions of detonation events are more than sufficient to initiate thermal decomposition in even the most robust fluoropolymers. The thermal decomposition of …
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Mechanistic Studies of Peptidylglycine Alpha-Amidating Monooxygenase (PAM)
… the dealkylation event. It was determined that radical recombination between a Cu(II)-oxyl and a substrate radical to form an unstable copper-alkoxide intermediate was best suited to carry out this reaction. Structure-function analysis was used to rationalize the electronic features which made a …
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Potential PFAS products from thermal decomposition of munitions: a DFT analysis of pyrolysis products of fluoropolymers in the presence of energetic compounds
… but the major pathways involve the formation of radicals and extreme heat. Despite the extreme recalcitrance of fluoropolymers, the conditions of detonation events are more than sufficient to initiate thermal decomposition in even the most robust fluoropolymers. The thermal decomposition of …
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The effects of molecular structures and reactant temperatures on soot formation in a coflow laminar flame
… aromatic hydrocarbons (PAHs) through efficient radical recombination whereas the latter forms PAHs via the sequential Hydrogen-Abstraction-C2H2-Addition (HACA) mechanism. The importance of both mechanisms was highlighted by assessing the effect of naphthalene addition to both …
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Solute effects on the production and decay of primary species in the flash photolysis of indole
… for the hydrated electron, the indolyl neutral radical and the indole triplet state have been obtained in the microsecond, broadband (X > 260 nm) flash photolysis of helium-saturated, neutral aqueous solutions of indole, in the absence and in the presence of the solutes NaBr, BaCl2*2H20 and …
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Ignition and hydrodynamic ejections by laser-induced breakdowns
… absorbs laser energy. As a source of heat and radical species, laser-based energy deposition can be an effective ignition source, and its relative versatility and precision make it an attractive alternative to conventional ignition methods. Understanding of the breakdown-induced flow, its …
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Photoinduzierte radikalische Polymerisation in ionischen Flüssigkeiten und der Einfluss der Radikalrekombination
Die vorliegende Arbeit behandelt Untersuchungen zum Einfluss ionischer Flüssigkeiten sowohl auf den Rekombinationsprozess photolytisch generierter Lophylradikale als auch auf die photoinduzierte Polymerisation. Im Fokus standen hierbei pyrrolidiniumbasierte ionische Flüssigkeiten sowie …
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Radiation biophysical modeling of the FLASH effect: from mechanistic understanding towards clinical endpoint prediction
… hypoxia due to O2 depletion, (ii) organic radical recombination, (iii) inter-track effects, or (iv) the immune system-driven effect. However, some of these have been discredited by further experiments. Based on these mechanisms, several mathematical models have been proposed. However, most …