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Full-Text Articles in Chemistry
Photochemical And Thermal Reactions Of Nitrous Acid In A Benzene Matrix, Ethan Schrum '99
Photochemical And Thermal Reactions Of Nitrous Acid In A Benzene Matrix, Ethan Schrum '99
Honors Projects
The photodegradation of nitrous acid in the troposphere is an initiation step in the formation of photochemical smog. NOx emissions from internal combustion engines react with atmospheric water vapor during sundown hours to form nitrous acid. Daytime sunlight cleaves nitrous acid into OB and NO radicals, which attack hydrocarbons emitted by industry to form the constituents of photochemical smog. In order to increase our understanding of these reactions, we have studied them in the liquid phase. Aqueous nitrous acid was extracted into a liquid benzene matrix to form a clear solution of approximately 0.075 M nitrous acid in benzene, which …
Synthesis Of Novel Sesquiterpene Lactones: Heritianin, Vallapianin And Vallapin, Kostas Gavardinas '99
Synthesis Of Novel Sesquiterpene Lactones: Heritianin, Vallapianin And Vallapin, Kostas Gavardinas '99
Honors Projects
For decades considerable research has focused on improving the efficiency of crop protection. Many naturally occurring biodegradable compounds have often been used as pesticides and with increased environmental concerns, the identification of biologically active natural products has attracted significant attention. Fish toxicity has often been used as a measure of pesticidal activity. Several Southeast Asian mangrove species have been shown to possess ichthyotoxic properties. A bioassay of the extracts obtained from Heritiera littoralis, a Philippine mangrove plant, indicated toxicity toward fish thus suggesting the possibility of their use as pesticides. Three sesquiterpene lactones, Heritianin, Vallapin, and Vallapianin have been isolated …