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Published on: October 15, 2019
Divulgación de la esquiva jaula de carbono C2v-C72
Karolin Ziegler1, Andreas Mueller, Konstantin Yu Amsharov
1Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany.
Journal of the American Chemical Society
|November 13, 2010
Resumen
Los investigadores sintetizaron la primera jaula de fullereno que viola la regla del pentágono aislado, C2v-C72. Esta estructura esquiva fue capturada a través de la cloración y su estructura confirmada por análisis de rayos X.
Área de la Ciencia:
- La química del fullereno es muy diferente.
- Los nanomateriales de carbono son también nanomateriales de carbono.
- Se trata de una química supramolecular.
Sus antecedentes:
- Los fullerenos son alótropos de carbono con estructuras en forma de jaula.
- La regla del pentágono aislado (IPR, por sus siglas en inglés) rige la estabilidad del fullereno, prohibiendo los pentágonos adyacentes.
- Existen miles de isómeros de fullereno, pero la mayoría se adhieren al RPI.
Objetivo del estudio:
- Para sintetizar y aislar el primer fullereno se predijo que violaría la regla del pentágono aislado.
- Para caracterizar la estructura de este fullereno único.
- Para investigar la estabilidad y las propiedades del fullereno que viola los derechos de propiedad intelectual.
Principales métodos:
- Clorado in situ de los precursores del fullereno.
- Aislamiento del derivado del fullereno clorado.
- Difracción de rayos X monocristalino para la determinación estructural.
Principales resultados:
- Síntesis y aislamiento exitosos de la jaula de fullereno C2v-simétrica C72.
- Confirmación de la estructura de C2v-C72Cl4 a través de la cristalografía de rayos X.
- Caracterización del patrón de cloración y su impacto en la estabilidad.
Conclusiones:
- Se logra la síntesis de la primera jaula de fullereno que viola los DPI.
- La estabilidad de este fullereno único se puede mejorar a través de la modificación química.
- Este trabajo amplía la diversidad estructural conocida de los fullerenos.
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