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Full-Text Articles in Physical Sciences and Mathematics
Reactivity Of Photogenerated Amine Radical Cations, Qile Wang
Reactivity Of Photogenerated Amine Radical Cations, Qile Wang
Graduate Theses and Dissertations
Recently photoredox catalysis has emerged as a powerful tool in organic synthesis led by Professor McMillan, Stephenson, Yoon. Upon absorption of visible light, photocatalyst can be excited to its singlet state followed by intersystem crossing to form a long lived excited triplet state. While amine serves as electron donor, single electron transfer (SET) can happen between excited triplet photocatalyst and nitrogen atom on amine to give a reduced photocatalyst and amine radical cation.
Cyclopropylamines or cyclobutylamines can be oxidized by excited photocatalyst to generate amine radical cations and due to the ring strain, subsequent C-C bond cleavages can lead to …
Sources And Source Processes Of Organic Nitrogen Aerosols In The Atmosphere, Mark E. Erupe
Sources And Source Processes Of Organic Nitrogen Aerosols In The Atmosphere, Mark E. Erupe
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The research in this dissertation explored the sources and chemistry of organic nitrogen aerosols in the atmosphere. Two approaches were employed: field measurements and laboratory experiments. In order to characterize atmospheric aerosol, two ambient studies were conducted in Cache Valley in Northern Utah during strong winter inversions of 2004 and 2005. The economy of this region is heavily dependent on agriculture. There is also a fast growing urban population. Urban and agricultural emissions, aided by the valley geography and meteorology, led to high concentrations of fine particles that often exceeded the national ambient air quality standards. Aerosol composition was dominated …