Development of N-aryl phenoxazines as strongly reducing organic photoredox catalysts
| dc.contributor.author | McCarthy, Blaine Gould, author | |
| dc.contributor.author | Miyake, Garret, advisor | |
| dc.contributor.author | Bandar, Jeffrey, committee member | |
| dc.contributor.author | Krummel, Amber, committee member | |
| dc.contributor.author | James, Susan, committee member | |
| dc.date.accessioned | 2020-06-22T11:53:49Z | |
| dc.date.available | 2020-06-22T11:53:49Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | N-aryl phenoxazines were identified as a new family of organic photoredox catalysts capable of effecting single electron transfer reductions from the photoexcited state. A number of phenoxazines bearing different N-aryl and core substituents were synthesized, characterized, and employed as catalysts. Spectroscopic and electrochemical characterization of these phenoxazines was used to establish structure-property relationships for the design of visible-light absorbing, strongly reducing organic photoredox catalysts. The application of phenoxazines as catalysts for organocatalyzed atom transfer radical polymerization (O-ATRP), a light-driven method for the synthesis of well-defined polymers, revealed the importance of several catalyst properties for achieving control over the polymerization. Investigation of the properties and catalytic performance of N-aryl phenoxazines has provided fundamental insight into the reactivity of organic excited state reductants and photophysical properties of organic molecules. The catalysts developed through this work provide sustainable alternatives to more commonly used precious-metal containing photoredox catalysts. | |
| dc.format.medium | born digital | |
| dc.format.medium | doctoral dissertations | |
| dc.identifier | McCarthy_colostate_0053A_15973.pdf | |
| dc.identifier.uri | https://hdl.handle.net/10217/208563 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation.ispartof | 2020- | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.subject | photochemistry | |
| dc.subject | polymer chemistry | |
| dc.subject | photoredox catalysis | |
| dc.subject | catalysis | |
| dc.title | Development of N-aryl phenoxazines as strongly reducing organic photoredox catalysts | |
| dc.type | Text | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| thesis.degree.discipline | Chemistry | |
| thesis.degree.grantor | Colorado State University | |
| thesis.degree.level | Doctoral | |
| thesis.degree.name | Doctor of Philosophy (Ph.D.) |
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