Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study

The oxidation of triphenylphosphine in the presence of various photocatalytic systems (dicyanoanthracene/biphenyl, N-methylquinolinium, triphenylpyrylium, and thiatriphenylpyrylium tetrafluoroborate) was investigated by means of both steady state and laser flash photolysis experiments. The effect of...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Bonesi, S.M., Protti, S., Albini, A.
Formato: JOUR
Materias:
Oxidation
Photolysis
Comparative studies
Laser flash photolysis
Photo-induced electron transfer
Photocatalytic systems
Photosensitized oxidation
Reactive oxygen species
Tetrafluoroborates
Triphenyl phosphines
Reaction intermediates
peroxy radical
photosensitizing agent
reactive oxygen metabolite
triphenylphosphine
Article
chemical structure
electron transport
fluorescence
laser
oxidation
photochemistry
photolysis
photosensitized oxidation
quantum yield
steady state
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00223263_v81_n23_p11678_Bonesi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00223263_v81_n23_p11678_Bonesi
record_format dspace
spelling todo:paper_00223263_v81_n23_p11678_Bonesi2023-10-03T14:31:31Z Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study Bonesi, S.M. Protti, S. Albini, A. Oxidation Photolysis Comparative studies Laser flash photolysis Photo-induced electron transfer Photocatalytic systems Photosensitized oxidation Reactive oxygen species Tetrafluoroborates Triphenyl phosphines Reaction intermediates peroxy radical photosensitizing agent reactive oxygen metabolite triphenylphosphine Article chemical structure electron transport fluorescence laser oxidation photochemistry photolysis photosensitized oxidation quantum yield steady state The oxidation of triphenylphosphine in the presence of various photocatalytic systems (dicyanoanthracene/biphenyl, N-methylquinolinium, triphenylpyrylium, and thiatriphenylpyrylium tetrafluoroborate) was investigated by means of both steady state and laser flash photolysis experiments. The effect of different additives (including 1,4-benzoquinone, diphenylsulfoxide, tetramethylethylene, and sodium azide) on the photosensitized oxidation was investigated in order to fully characterize the involved intermediates. Photoinduced electron transfer and final regeneration of the catalyst occur when dicyanoanthracene and N-methylquinolinium are used, while in cage oxygen transfer to the photoexcited (thio)pyrylium derivatives have been characterized in the last two cases. © 2016 American Chemical Society. Fil:Bonesi, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223263_v81_n23_p11678_Bonesi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Oxidation
Photolysis
Comparative studies
Laser flash photolysis
Photo-induced electron transfer
Photocatalytic systems
Photosensitized oxidation
Reactive oxygen species
Tetrafluoroborates
Triphenyl phosphines
Reaction intermediates
peroxy radical
photosensitizing agent
reactive oxygen metabolite
triphenylphosphine
Article
chemical structure
electron transport
fluorescence
laser
oxidation
photochemistry
photolysis
photosensitized oxidation
quantum yield
steady state
spellingShingle Oxidation
Photolysis
Comparative studies
Laser flash photolysis
Photo-induced electron transfer
Photocatalytic systems
Photosensitized oxidation
Reactive oxygen species
Tetrafluoroborates
Triphenyl phosphines
Reaction intermediates
peroxy radical
photosensitizing agent
reactive oxygen metabolite
triphenylphosphine
Article
chemical structure
electron transport
fluorescence
laser
oxidation
photochemistry
photolysis
photosensitized oxidation
quantum yield
steady state
Bonesi, S.M.
Protti, S.
Albini, A.
Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study
topic_facet Oxidation
Photolysis
Comparative studies
Laser flash photolysis
Photo-induced electron transfer
Photocatalytic systems
Photosensitized oxidation
Reactive oxygen species
Tetrafluoroborates
Triphenyl phosphines
Reaction intermediates
peroxy radical
photosensitizing agent
reactive oxygen metabolite
triphenylphosphine
Article
chemical structure
electron transport
fluorescence
laser
oxidation
photochemistry
photolysis
photosensitized oxidation
quantum yield
steady state
description The oxidation of triphenylphosphine in the presence of various photocatalytic systems (dicyanoanthracene/biphenyl, N-methylquinolinium, triphenylpyrylium, and thiatriphenylpyrylium tetrafluoroborate) was investigated by means of both steady state and laser flash photolysis experiments. The effect of different additives (including 1,4-benzoquinone, diphenylsulfoxide, tetramethylethylene, and sodium azide) on the photosensitized oxidation was investigated in order to fully characterize the involved intermediates. Photoinduced electron transfer and final regeneration of the catalyst occur when dicyanoanthracene and N-methylquinolinium are used, while in cage oxygen transfer to the photoexcited (thio)pyrylium derivatives have been characterized in the last two cases. © 2016 American Chemical Society.
format JOUR
author Bonesi, S.M.
Protti, S.
Albini, A.
author_facet Bonesi, S.M.
Protti, S.
Albini, A.
author_sort Bonesi, S.M.
title Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study
title_short Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study
title_full Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study
title_fullStr Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study
title_full_unstemmed Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study
title_sort reactive oxygen species (ros)-vs peroxyl-mediated photosensitized oxidation of triphenylphosphine: a comparative study
url http://hdl.handle.net/20.500.12110/paper_00223263_v81_n23_p11678_Bonesi
work_keys_str_mv AT bonesism reactiveoxygenspeciesrosvsperoxylmediatedphotosensitizedoxidationoftriphenylphosphineacomparativestudy
AT prottis reactiveoxygenspeciesrosvsperoxylmediatedphotosensitizedoxidationoftriphenylphosphineacomparativestudy
AT albinia reactiveoxygenspeciesrosvsperoxylmediatedphotosensitizedoxidationoftriphenylphosphineacomparativestudy
_version_ 1782024771790176256

Ejemplares similares