Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions

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Thermal and photochemical stability (ΦR), room temperature UV-vis absorption and fluorescence spectra, fluorescence quantum yields (ΦF) and lifetimes (τF), quantum yields of hydrogen peroxide (ΦH2O2) and singlet oxygen (ΦΔ) production, and triplet lifetimes (τT) have been obtained for the neutral an...

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Autores principales: Rasse Suriani, Federico Ariel Osvaldo, Denofrio, María Paula, Yañuk, Juan Gabriel, González, Maria Micaela, Wolcan, Ezequiel, Seifermann, Marco, Erra Balsells, Rosa, Cabrerizo, Franco Martín
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2016
Materias:
Química
Photochemical
Singlet oxygen
Triplet lifetime
Chloroharmine
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100775
https://ri.conicet.gov.ar/11336/44550
http://pubs.rsc.org/en/content/articlelanding/2016/cp/c5cp05866j#!divAbstract
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100775
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Photochemical
Singlet oxygen
Triplet lifetime
Chloroharmine
spellingShingle Química
Photochemical
Singlet oxygen
Triplet lifetime
Chloroharmine
Rasse Suriani, Federico Ariel Osvaldo
Denofrio, María Paula
Yañuk, Juan Gabriel
González, Maria Micaela
Wolcan, Ezequiel
Seifermann, Marco
Erra Balsells, Rosa
Cabrerizo, Franco Martín
Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions
topic_facet Química
Photochemical
Singlet oxygen
Triplet lifetime
Chloroharmine
description Thermal and photochemical stability (ΦR), room temperature UV-vis absorption and fluorescence spectra, fluorescence quantum yields (ΦF) and lifetimes (τF), quantum yields of hydrogen peroxide (ΦH2O2) and singlet oxygen (ΦΔ) production, and triplet lifetimes (τT) have been obtained for the neutral and protonated forms of 6-chloroharmine, 8-chloroharmine and 6,8-dichloroharmine, in aqueous media. When it was possible, the effect of pH and oxygen concentration was evaluated. The nature of electronic transitions of protonated and neutral species of the three investigated chloroharmines was established using Time-Dependent Density Functional Theory (TD-DFT) calculations. The impact of all the foregoing observations on the biological role of the studied compounds is discussed.
format Articulo
Preprint
author Rasse Suriani, Federico Ariel Osvaldo
Denofrio, María Paula
Yañuk, Juan Gabriel
González, Maria Micaela
Wolcan, Ezequiel
Seifermann, Marco
Erra Balsells, Rosa
Cabrerizo, Franco Martín
author_facet Rasse Suriani, Federico Ariel Osvaldo
Denofrio, María Paula
Yañuk, Juan Gabriel
González, Maria Micaela
Wolcan, Ezequiel
Seifermann, Marco
Erra Balsells, Rosa
Cabrerizo, Franco Martín
author_sort Rasse Suriani, Federico Ariel Osvaldo
title Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions
title_short Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions
title_full Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions
title_fullStr Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions
title_full_unstemmed Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions
title_sort chemical and photochemical properties of chloroharmine derivatives in aqueous solutions
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/100775
https://ri.conicet.gov.ar/11336/44550
http://pubs.rsc.org/en/content/articlelanding/2016/cp/c5cp05866j#!divAbstract
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