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Probing the formation of halogenated endohedral metallofullerenes: Predictions confirmed by experiments

  • Datos identificativos

    Identificador: imarina:3672884
    Autores:
    Moreno-Vicente A., Mulet-Gas M., Dunk P., Poblet J., Rodríguez-Fortea A.
    Resumen:
    The functionalization of endohedral metallofullerenes by halogenation has not been previously reported and remains a challenging endeavor in carbon nanoscience. In this work, we show that halogenation of endohedral metallofullerenes is predicted to be feasible based on thermodynamic grounds by means of DFT computations, combined with in situ experimental investigations. Computed bond energies for the chlorination, fluorination and hydrogenation of endohedral metallofullerenes that span a range of cage sizes are found to be comparable to those of known halogenated and hydrogenated empty fullerenes. Therefore, we propose that new forms of functionalized metallofullerenes should be synthesized under appropriate experimental conditions, despite many prior unsuccessful attempts. Indeed, we experimentally show for the first time that M@C2n (M = metal) metallofullerenes and the prototypical Sc3N@C80 clusterfullerene can be fluorinated by two different routes under the typical 'harsh' gas phase conditions of metallofullerene plasma synthesis, and at lower extents that could avoid cage degradation. The combination of halogenation and metal encapsulation offers the potential to create new radical-quenched, functionalized endohedral metallofullerenes that possess stable, large-gap carbon cages. These results open new avenues for the synthesis and stabilization of encapsulated molecular nanocarbons.
  • Otros:

    Autor según el artículo: Moreno-Vicente A., Mulet-Gas M., Dunk P., Poblet J., Rodríguez-Fortea A.
    Departamento: Química Física i Inorgànica
    Autor/es de la URV: Poblet Rius, Josep Maria / Rodríguez Fortea, Antonio
    Palabras clave: Fullerenes
    Resumen: The functionalization of endohedral metallofullerenes by halogenation has not been previously reported and remains a challenging endeavor in carbon nanoscience. In this work, we show that halogenation of endohedral metallofullerenes is predicted to be feasible based on thermodynamic grounds by means of DFT computations, combined with in situ experimental investigations. Computed bond energies for the chlorination, fluorination and hydrogenation of endohedral metallofullerenes that span a range of cage sizes are found to be comparable to those of known halogenated and hydrogenated empty fullerenes. Therefore, we propose that new forms of functionalized metallofullerenes should be synthesized under appropriate experimental conditions, despite many prior unsuccessful attempts. Indeed, we experimentally show for the first time that M@C2n (M = metal) metallofullerenes and the prototypical Sc3N@C80 clusterfullerene can be fluorinated by two different routes under the typical 'harsh' gas phase conditions of metallofullerene plasma synthesis, and at lower extents that could avoid cage degradation. The combination of halogenation and metal encapsulation offers the potential to create new radical-quenched, functionalized endohedral metallofullerenes that possess stable, large-gap carbon cages. These results open new avenues for the synthesis and stabilization of encapsulated molecular nanocarbons.
    Áreas temáticas: Química Medicina iii Medicina i Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materials science Materiais Interdisciplinar General materials science General chemistry Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Ciências biológicas ii Ciências biológicas i Ciências ambientais Chemistry, physical Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
    ISSN: 00086223
    Direcció de correo del autor: josepmaria.poblet@urv.cat antonio.rodriguezf@urv.cat
    Identificador del autor: 0000-0002-4533-0623 0000-0001-5884-5629
    Fecha de alta del registro: 2024-09-07
    Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
    Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S0008622317312897
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Carbon. 129 750-757
    Referencia de l'ítem segons les normes APA: Moreno-Vicente A., Mulet-Gas M., Dunk P., Poblet J., Rodríguez-Fortea A. (2018). Probing the formation of halogenated endohedral metallofullerenes: Predictions confirmed by experiments. Carbon, 129(), 750-757. DOI: 10.1016/j.carbon.2017.12.056
    DOI del artículo: 10.1016/j.carbon.2017.12.056
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2018
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Chemistry (Miscellaneous),Chemistry, Physical,Materials Science,Materials Science (Miscellaneous),Materials Science, Multidisciplinary
    Fullerenes
    Química
    Medicina iii
    Medicina i
    Materials science, multidisciplinary
    Materials science (miscellaneous)
    Materials science (all)
    Materials science
    Materiais
    Interdisciplinar
    General materials science
    General chemistry
    Farmacia
    Ensino
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Chemistry, physical
    Chemistry (miscellaneous)
    Chemistry (all)
    Biotecnología
    Astronomia / física
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