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...
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2016
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223263_v81_n23_p11678_Bonesi http://hdl.handle.net/20.500.12110/paper_00223263_v81_n23_p11678_Bonesi |
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paper:paper_00223263_v81_n23_p11678_Bonesi2023-06-08T14:49:38Z Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study Bonesi, Sergio Mauricio 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. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223263_v81_n23_p11678_Bonesi 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, Sergio Mauricio 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. |
| author |
Bonesi, Sergio Mauricio |
| author_facet |
Bonesi, Sergio Mauricio |
| author_sort |
Bonesi, Sergio Mauricio |
| 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 |
| publishDate |
2016 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223263_v81_n23_p11678_Bonesi http://hdl.handle.net/20.500.12110/paper_00223263_v81_n23_p11678_Bonesi |
| work_keys_str_mv |
AT bonesisergiomauricio reactiveoxygenspeciesrosvsperoxylmediatedphotosensitizedoxidationoftriphenylphosphineacomparativestudy |
| _version_ |
1768542538185048064 |