{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/78569"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/78569","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"Aerobic Photoredox Reactions with Chalcogenorosamine Photosensitizers","abstract":"M.S.","abstract_html":"M.S.","abstract_has_math":false,"creators":["Clark, Jennifer"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Detty, Michael","Chemistry"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-10-26T02:55:43Z","date_published":"2018-10-26T02:55:43Z","updated_at":"2026-07-27T19:05:12Z","subjects":["chemistry"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/78569","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Detty, Michael","Chemistry"]},{"key":"dc:creator","label":"Author","values":["Clark, Jennifer"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018-10-26T02:55:43Z","2018","2018-08-08 06:50:38"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["chemistry"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/78569"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["M.S.","Photocatalysis is a single-electron-transfer (SET) process that employs organic dyes or transition metal complexes along with visible light irradiation. Organic dyes have been utilized to a limited extent in photoredox catalysis, while ruthenium(II) and iridium(III) complexes have been extensively studied for over 30 years. There are several properties of organic dyes that make them advantageous over transition metal complexes as photocatalysts. Organic dyes are less toxic, more cost effective, and have improved photophysical properties, such as increased absorption in the visible region and high singlet oxygen quantum yields, making them a more practical option. The aza-Henry reaction, a carbon-carbon coupling reaction between a nitroalkane and an amine yielding a-amino nitroalkane, was studied using heavy atom-containing chalcogenorhodamine dyes as photocatalysts. By replacing the oxygen heteroatom, in the xanthone core, with sulfur or selenium, intersystem crossing (ISC) to the triplet state is increased as a result of the heavy atom effect. A longer-lived triplet excited state increases the probability of electron transfer events, improving yields in known reactions and giving way to the ability to catalyze less traditional routes in organic synthesis."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Aerobic Photoredox Reactions with Chalcogenorosamine Photosensitizers"]}]}],"canonical_facts":{"dc:contributor":["Detty, Michael","Chemistry"],"dc:creator":["Clark, Jennifer"],"dc:date":["2018-10-26T02:55:43Z","2018","2018-08-08 06:50:38"],"dc:description":["M.S.","Photocatalysis is a single-electron-transfer (SET) process that employs organic dyes or transition metal complexes along with visible light irradiation. Organic dyes have been utilized to a limited extent in photoredox catalysis, while ruthenium(II) and iridium(III) complexes have been extensively studied for over 30 years. There are several properties of organic dyes that make them advantageous over transition metal complexes as photocatalysts. Organic dyes are less toxic, more cost effective, and have improved photophysical properties, such as increased absorption in the visible region and high singlet oxygen quantum yields, making them a more practical option. The aza-Henry reaction, a carbon-carbon coupling reaction between a nitroalkane and an amine yielding a-amino nitroalkane, was studied using heavy atom-containing chalcogenorhodamine dyes as photocatalysts. By replacing the oxygen heteroatom, in the xanthone core, with sulfur or selenium, intersystem crossing (ISC) to the triplet state is increased as a result of the heavy atom effect. A longer-lived triplet excited state increases the probability of electron transfer events, improving yields in known reactions and giving way to the ability to catalyze less traditional routes in organic synthesis."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/78569"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["chemistry"],"dc:title":["Aerobic Photoredox Reactions with Chalcogenorosamine Photosensitizers"],"dc:type":["Text","Thesis"]},"updated_at":"2026-07-27T19:05:12Z"}