Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene
- Autores
- Rosso, Janina Alejandra; Allegretti, Patricia Ercilia; Mártire, Daniel Osvaldo; González, Mónica Cristina
- Año de publicación
- 1999
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The aqueous phase reactions of α,α,α-trifluorotoluene (TFT) with sulfate and phosphate radicals have been investigated by conventional flash-photolysis. The bimolecular rate constants obtained for the reactions of SO₄˙⁻, H₂PO₄˙, HPO₄˙⁻and PO₄˙²⁻ with TFT are (2 ± 1) × 10⁷, (3.5 ± 0.5) × 10⁷, (2.7 ± 0.5) × 10⁶ and (9 ± 1) × 10⁵M⁻¹ s⁻¹, respectively. The organic radicals produced from these reactions exhibit a common absorption peak at 290–300 nm. Additionally, the transients generated from sulfate radicals show a shoulder at 360–370 nm and those generated from phosphate radicals a less intense maximum at 400 nm. Based on the experimental results, the nature of the organic radicals is discussed. Additional information on the hydroxycyclohexadienyl radicals of TFT is obtained from independent experiments with hydrogen peroxide solutions containing TFT.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Química
sulfate and phosphate radicals
nature of the organic radicals - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/159128
Ver los metadatos del registro completo
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Reaction of sulfate and phosphate radicals with α,α,α-trifluorotolueneRosso, Janina AlejandraAllegretti, Patricia ErciliaMártire, Daniel OsvaldoGonzález, Mónica CristinaQuímicasulfate and phosphate radicalsnature of the organic radicalsThe aqueous phase reactions of α,α,α-trifluorotoluene (TFT) with sulfate and phosphate radicals have been investigated by conventional flash-photolysis. The bimolecular rate constants obtained for the reactions of SO₄˙⁻, H₂PO₄˙, HPO₄˙⁻and PO₄˙²⁻ with TFT are (2 ± 1) × 10⁷, (3.5 ± 0.5) × 10⁷, (2.7 ± 0.5) × 10⁶ and (9 ± 1) × 10⁵M⁻¹ s⁻¹, respectively. The organic radicals produced from these reactions exhibit a common absorption peak at 290–300 nm. Additionally, the transients generated from sulfate radicals show a shoulder at 360–370 nm and those generated from phosphate radicals a less intense maximum at 400 nm. Based on the experimental results, the nature of the organic radicals is discussed. Additional information on the hydroxycyclohexadienyl radicals of TFT is obtained from independent experiments with hydrogen peroxide solutions containing TFT.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1999info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf205-210http://sedici.unlp.edu.ar/handle/10915/159128enginfo:eu-repo/semantics/altIdentifier/issn/1472779xinfo:eu-repo/semantics/altIdentifier/doi/10.1039/A807751Ginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:33:20Zoai:sedici.unlp.edu.ar:10915/159128Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:33:21.045SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene |
| title |
Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene |
| spellingShingle |
Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene Rosso, Janina Alejandra Química sulfate and phosphate radicals nature of the organic radicals |
| title_short |
Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene |
| title_full |
Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene |
| title_fullStr |
Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene |
| title_full_unstemmed |
Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene |
| title_sort |
Reaction of sulfate and phosphate radicals with α,α,α-trifluorotoluene |
| dc.creator.none.fl_str_mv |
Rosso, Janina Alejandra Allegretti, Patricia Ercilia Mártire, Daniel Osvaldo González, Mónica Cristina |
| author |
Rosso, Janina Alejandra |
| author_facet |
Rosso, Janina Alejandra Allegretti, Patricia Ercilia Mártire, Daniel Osvaldo González, Mónica Cristina |
| author_role |
author |
| author2 |
Allegretti, Patricia Ercilia Mártire, Daniel Osvaldo González, Mónica Cristina |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
Química sulfate and phosphate radicals nature of the organic radicals |
| topic |
Química sulfate and phosphate radicals nature of the organic radicals |
| dc.description.none.fl_txt_mv |
The aqueous phase reactions of α,α,α-trifluorotoluene (TFT) with sulfate and phosphate radicals have been investigated by conventional flash-photolysis. The bimolecular rate constants obtained for the reactions of SO₄˙⁻, H₂PO₄˙, HPO₄˙⁻and PO₄˙²⁻ with TFT are (2 ± 1) × 10⁷, (3.5 ± 0.5) × 10⁷, (2.7 ± 0.5) × 10⁶ and (9 ± 1) × 10⁵M⁻¹ s⁻¹, respectively. The organic radicals produced from these reactions exhibit a common absorption peak at 290–300 nm. Additionally, the transients generated from sulfate radicals show a shoulder at 360–370 nm and those generated from phosphate radicals a less intense maximum at 400 nm. Based on the experimental results, the nature of the organic radicals is discussed. Additional information on the hydroxycyclohexadienyl radicals of TFT is obtained from independent experiments with hydrogen peroxide solutions containing TFT. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
| description |
The aqueous phase reactions of α,α,α-trifluorotoluene (TFT) with sulfate and phosphate radicals have been investigated by conventional flash-photolysis. The bimolecular rate constants obtained for the reactions of SO₄˙⁻, H₂PO₄˙, HPO₄˙⁻and PO₄˙²⁻ with TFT are (2 ± 1) × 10⁷, (3.5 ± 0.5) × 10⁷, (2.7 ± 0.5) × 10⁶ and (9 ± 1) × 10⁵M⁻¹ s⁻¹, respectively. The organic radicals produced from these reactions exhibit a common absorption peak at 290–300 nm. Additionally, the transients generated from sulfate radicals show a shoulder at 360–370 nm and those generated from phosphate radicals a less intense maximum at 400 nm. Based on the experimental results, the nature of the organic radicals is discussed. Additional information on the hydroxycyclohexadienyl radicals of TFT is obtained from independent experiments with hydrogen peroxide solutions containing TFT. |
| publishDate |
1999 |
| dc.date.none.fl_str_mv |
1999 |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/159128 |
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eng |
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eng |
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