Articles producció científica> Química Física i Inorgànica

An Ultra-Long-Lived Triplet Excited State in Water at Room Temperature: Insights on the Molecular Design of Tridecafullerenes

  • Datos identificativos

    Identificador: imarina:9218759
    Autores:
    Ramos-Soriano, JavierPerez-Sanchez, AlfonsoRamirez-Barroso, SergioIllescas, Beatriz MAzmani, KhalidRodriguez-Fortea, AntonioPoblet, Josep MHally, CormacNonell, SantiGarcia-Fresnadillo, DavidRojo, JavierMartin, Nazario
    Resumen:
    Suitably engineered molecular systems exhibiting triplet excited states with very long lifetimes are important for high-end applications in nonlinear optics, photocatalysis, or biomedicine. We report the finding of an ultra-long-lived triplet state with a mean lifetime of 93 ms in an aqueous phase at room temperature, measured for a globular tridecafullerene with a highly compact glycodendrimeric structure. A series of three tridecafullerenes bearing different glycodendrons and spacers to the C-60 units have been synthesized and characterized. UV/Vis spectra and DLS experiments confirm their aggregation in water. Steady-state and time-resolved fluorescence experiments suggest a different degree of inner solvation of the multifullerenes depending on their molecular design. Efficient quenching of the triplet states by O-2 but not by waterborne azide anions has been observed. Molecular modelling reveals dissimilar access of the aqueous phase to the internal structure of the tridecafullerenes, differently shielded by the glycodendrimeric shell.
  • Otros:

    Autor según el artículo: Ramos-Soriano, Javier; Perez-Sanchez, Alfonso; Ramirez-Barroso, Sergio; Illescas, Beatriz M; Azmani, Khalid; Rodriguez-Fortea, Antonio; Poblet, Josep M; Hally, Cormac; Nonell, Santi; Garcia-Fresnadillo, David; Rojo, Javier; Martin, Nazario
    Departamento: Química Física i Inorgànica
    Autor/es de la URV: Azmani, Khalid / Poblet Rius, Josep Maria / Rodríguez Fortea, Antonio
    Palabras clave: Triplet quenching Triplet lifetime Photosensitizers Photochemistry Phosphorescence Luminescence Light Hexa-adduct Glycoconjugates Fullerenes Cycloaddition Complexes Carbon C-60 Azide
    Resumen: Suitably engineered molecular systems exhibiting triplet excited states with very long lifetimes are important for high-end applications in nonlinear optics, photocatalysis, or biomedicine. We report the finding of an ultra-long-lived triplet state with a mean lifetime of 93 ms in an aqueous phase at room temperature, measured for a globular tridecafullerene with a highly compact glycodendrimeric structure. A series of three tridecafullerenes bearing different glycodendrons and spacers to the C-60 units have been synthesized and characterized. UV/Vis spectra and DLS experiments confirm their aggregation in water. Steady-state and time-resolved fluorescence experiments suggest a different degree of inner solvation of the multifullerenes depending on their molecular design. Efficient quenching of the triplet states by O-2 but not by waterborne azide anions has been observed. Molecular modelling reveals dissimilar access of the aqueous phase to the internal structure of the tridecafullerenes, differently shielded by the glycodendrimeric shell.
    Áreas temáticas: Química Medicina ii Medicina i Materiais Interdisciplinar General medicine General chemistry Farmacia Engenharias ii Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Chemistry, multidisciplinary Chemistry (miscellaneous) Chemistry (all) Chemistry Catalysis Astronomia / física
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: josepmaria.poblet@urv.cat antonio.rodriguezf@urv.cat
    Identificador del autor: 0000-0002-4533-0623 0000-0001-5884-5629
    Página final: 12
    Fecha de alta del registro: 2024-10-12
    Volumen de revista: 60
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://onlinelibrary.wiley.com/doi/10.1002/anie.202104223
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Angewandte Chemie (International Ed. Print). 60 (29): 16109-16118
    Referencia de l'ítem segons les normes APA: Ramos-Soriano, Javier; Perez-Sanchez, Alfonso; Ramirez-Barroso, Sergio; Illescas, Beatriz M; Azmani, Khalid; Rodriguez-Fortea, Antonio; Poblet, Josep (2021). An Ultra-Long-Lived Triplet Excited State in Water at Room Temperature: Insights on the Molecular Design of Tridecafullerenes. Angewandte Chemie (International Ed. Print), 60(29), 16109-16118. DOI: 10.1002/anie.202104223
    DOI del artículo: 10.1002/anie.202104223
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2021
    Página inicial: 2
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Catalysis,Chemistry,Chemistry (Miscellaneous),Chemistry, Multidisciplinary
    Triplet quenching
    Triplet lifetime
    Photosensitizers
    Photochemistry
    Phosphorescence
    Luminescence
    Light
    Hexa-adduct
    Glycoconjugates
    Fullerenes
    Cycloaddition
    Complexes
    Carbon
    C-60
    Azide
    Química
    Medicina ii
    Medicina i
    Materiais
    Interdisciplinar
    General medicine
    General chemistry
    Farmacia
    Engenharias ii
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Chemistry, multidisciplinary
    Chemistry (miscellaneous)
    Chemistry (all)
    Chemistry
    Catalysis
    Astronomia / física
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