Reactivity of neonicotinoid pesticides with singlet oxygen
- Autores
- Dell'Arciprete, María Laura; Santos-Juanes, L.; Arques, A.; Vercher, R.F.; Amat, A.M.; Furlong, Jorge Javier Pedro; Mártire, Daniel Osvaldo; González, Mónica Cristina
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The reaction kinetics and mechanisms of three neonicotinoid insecticides, imidacloprid (IMD), thiacloprid (THIA) and acetamiprid (ACT), with singlet oxygen and Rose Bengal excited triplet state is reported. The rate constants (5.5 ± 0.5) × 10⁶, (3.9 ± 1) × 10⁶, and (1.3 ± 1) × 10⁶ M⁻¹ s⁻¹ were determined for the chemical reaction of singlet oxygen, and the values (4.8 ± 1) × 10⁷, (1.5 ± 1) × 10⁸, and (3.6 ± 1) × 10⁶ M⁻¹ s⁻¹ for the reactions with Rose Bengal triplet state for IMD, THIA, and ACT, respectively. The most important primary degradation product identified was 6-chloronicotinic acid. The results support a reaction mechanism involving a charge transfer reaction between the insecticides and singlet oxygen or Rose Bengal triplet state. The toxicity of the solutions towards Vibrio fischeri seems not to decrease during the early stages of the reactions. Depletion of the insecticides by singlet oxygen and naturally occurring excited states might be important abiotic pathways involved in natural waters.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Laboratorio de Estudio de Compuestos Orgánicos - Materia
-
Química
Neonicotinoids
Rose Bengal
Singlet oxygen
Sunlight
Self-cleaning - 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:10915/170192
Ver los metadatos del registro completo
| id |
SEDICI_1fe9162309f140222566f91245ae106e |
|---|---|
| oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/170192 |
| network_acronym_str |
SEDICI |
| repository_id_str |
1329 |
| network_name_str |
SEDICI (UNLP) |
| spelling |
Reactivity of neonicotinoid pesticides with singlet oxygenDell'Arciprete, María LauraSantos-Juanes, L.Arques, A.Vercher, R.F.Amat, A.M.Furlong, Jorge Javier PedroMártire, Daniel OsvaldoGonzález, Mónica CristinaQuímicaNeonicotinoidsRose BengalSinglet oxygenSunlightSelf-cleaningThe reaction kinetics and mechanisms of three neonicotinoid insecticides, imidacloprid (IMD), thiacloprid (THIA) and acetamiprid (ACT), with singlet oxygen and Rose Bengal excited triplet state is reported. The rate constants (5.5 ± 0.5) × 10⁶, (3.9 ± 1) × 10⁶, and (1.3 ± 1) × 10⁶ M⁻¹ s⁻¹ were determined for the chemical reaction of singlet oxygen, and the values (4.8 ± 1) × 10⁷, (1.5 ± 1) × 10⁸, and (3.6 ± 1) × 10⁶ M⁻¹ s⁻¹ for the reactions with Rose Bengal triplet state for IMD, THIA, and ACT, respectively. The most important primary degradation product identified was 6-chloronicotinic acid. The results support a reaction mechanism involving a charge transfer reaction between the insecticides and singlet oxygen or Rose Bengal triplet state. The toxicity of the solutions towards Vibrio fischeri seems not to decrease during the early stages of the reactions. Depletion of the insecticides by singlet oxygen and naturally occurring excited states might be important abiotic pathways involved in natural waters.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasLaboratorio de Estudio de Compuestos Orgánicos2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf137-142http://sedici.unlp.edu.ar/handle/10915/170192enginfo:eu-repo/semantics/altIdentifier/issn/1873-4308info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2010.01.020info: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:UNLP2025-09-03T11:17:30Zoai:sedici.unlp.edu.ar:10915/170192Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:17:30.882SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Reactivity of neonicotinoid pesticides with singlet oxygen |
| title |
Reactivity of neonicotinoid pesticides with singlet oxygen |
| spellingShingle |
Reactivity of neonicotinoid pesticides with singlet oxygen Dell'Arciprete, María Laura Química Neonicotinoids Rose Bengal Singlet oxygen Sunlight Self-cleaning |
| title_short |
Reactivity of neonicotinoid pesticides with singlet oxygen |
| title_full |
Reactivity of neonicotinoid pesticides with singlet oxygen |
| title_fullStr |
Reactivity of neonicotinoid pesticides with singlet oxygen |
| title_full_unstemmed |
Reactivity of neonicotinoid pesticides with singlet oxygen |
| title_sort |
Reactivity of neonicotinoid pesticides with singlet oxygen |
| dc.creator.none.fl_str_mv |
Dell'Arciprete, María Laura Santos-Juanes, L. Arques, A. Vercher, R.F. Amat, A.M. Furlong, Jorge Javier Pedro Mártire, Daniel Osvaldo González, Mónica Cristina |
| author |
Dell'Arciprete, María Laura |
| author_facet |
Dell'Arciprete, María Laura Santos-Juanes, L. Arques, A. Vercher, R.F. Amat, A.M. Furlong, Jorge Javier Pedro Mártire, Daniel Osvaldo González, Mónica Cristina |
| author_role |
author |
| author2 |
Santos-Juanes, L. Arques, A. Vercher, R.F. Amat, A.M. Furlong, Jorge Javier Pedro Mártire, Daniel Osvaldo González, Mónica Cristina |
| author2_role |
author author author author author author author |
| dc.subject.none.fl_str_mv |
Química Neonicotinoids Rose Bengal Singlet oxygen Sunlight Self-cleaning |
| topic |
Química Neonicotinoids Rose Bengal Singlet oxygen Sunlight Self-cleaning |
| dc.description.none.fl_txt_mv |
The reaction kinetics and mechanisms of three neonicotinoid insecticides, imidacloprid (IMD), thiacloprid (THIA) and acetamiprid (ACT), with singlet oxygen and Rose Bengal excited triplet state is reported. The rate constants (5.5 ± 0.5) × 10⁶, (3.9 ± 1) × 10⁶, and (1.3 ± 1) × 10⁶ M⁻¹ s⁻¹ were determined for the chemical reaction of singlet oxygen, and the values (4.8 ± 1) × 10⁷, (1.5 ± 1) × 10⁸, and (3.6 ± 1) × 10⁶ M⁻¹ s⁻¹ for the reactions with Rose Bengal triplet state for IMD, THIA, and ACT, respectively. The most important primary degradation product identified was 6-chloronicotinic acid. The results support a reaction mechanism involving a charge transfer reaction between the insecticides and singlet oxygen or Rose Bengal triplet state. The toxicity of the solutions towards Vibrio fischeri seems not to decrease during the early stages of the reactions. Depletion of the insecticides by singlet oxygen and naturally occurring excited states might be important abiotic pathways involved in natural waters. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Laboratorio de Estudio de Compuestos Orgánicos |
| description |
The reaction kinetics and mechanisms of three neonicotinoid insecticides, imidacloprid (IMD), thiacloprid (THIA) and acetamiprid (ACT), with singlet oxygen and Rose Bengal excited triplet state is reported. The rate constants (5.5 ± 0.5) × 10⁶, (3.9 ± 1) × 10⁶, and (1.3 ± 1) × 10⁶ M⁻¹ s⁻¹ were determined for the chemical reaction of singlet oxygen, and the values (4.8 ± 1) × 10⁷, (1.5 ± 1) × 10⁸, and (3.6 ± 1) × 10⁶ M⁻¹ s⁻¹ for the reactions with Rose Bengal triplet state for IMD, THIA, and ACT, respectively. The most important primary degradation product identified was 6-chloronicotinic acid. The results support a reaction mechanism involving a charge transfer reaction between the insecticides and singlet oxygen or Rose Bengal triplet state. The toxicity of the solutions towards Vibrio fischeri seems not to decrease during the early stages of the reactions. Depletion of the insecticides by singlet oxygen and naturally occurring excited states might be important abiotic pathways involved in natural waters. |
| publishDate |
2010 |
| dc.date.none.fl_str_mv |
2010 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/170192 |
| url |
http://sedici.unlp.edu.ar/handle/10915/170192 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1873-4308 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2010.01.020 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
| dc.format.none.fl_str_mv |
application/pdf 137-142 |
| dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
| reponame_str |
SEDICI (UNLP) |
| collection |
SEDICI (UNLP) |
| instname_str |
Universidad Nacional de La Plata |
| instacron_str |
UNLP |
| institution |
UNLP |
| repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
| repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
| _version_ |
1842260681239298048 |
| score |
13.13397 |