Studies on Electrolytic Substitution Reactions. XVII. Selective Nuclear Acetoxylation of Alkylaromatic Compounds.

Quantum Chemical Studies of Aromatic Substitution Reactions

In this thesis, density functional theory (DFT) is used to investigate the mechanisms and reactivities of electrophilic and nucleophilic aromatic substitution reactions (SEAr and SNAr respectively). For SEAr, the σ-complex intermediate is preceded by one (halogenation) or two (nitration) π-complex intermediates. Whereas the rate-determining transition state (TS) for nitration resembles the seco...

Product studies of gas-phase reactions of organic compounds

Large quantities of volatile non-methane organic compounds (NMOCs) are emitted into the atmosphere from anthropogenic and biogenic sources. In the troposphere, these NMOCs can undergo photolysis, reaction with the hydroxyl (OH) radical, reaction with the nitrate (NO3) radical, and reaction with ozone (03). While the kinetics of the initial OH radical, NO3 radical and 0 3 reactions are reasonabl...

Computational Studies Of Enzymatic Reactions And Inorganic Compounds

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Studies in vitamin A; reactions of retinene1 with amino compounds.

Experimental Studies of Ageing in Electrolytic Capacitors

Understanding the ageing mechanisms of electronic components critical avionics systems such as the GPS and INAV are of critical importance. Electrolytic capacitors and MOSFET’s have higher failure rates among the components of DC-DC power converter systems. Our current work focuses on analyzing and modeling electrolytic capacitor degradation and its effects on the output of DC-DC converter syst...