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C72Cl4: un fullereno prístino con una favorable estructura pentagonal adyacente

Yuan-Zhi Tan¹, Ting Zhou, Jian Bao

¹State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.

Journal of the American Chemical Society

|November 16, 2010

Resumen

Los investigadores han sintetizado y caracterizado un fullereno estable, no indexado y primitivo (NIPR), C72. Este descubrimiento allana el camino para comprender la estabilidad de los fullerenos C72 prístinos.

Área de la Ciencia:

La química del fullereno es muy diferente.
Se trata de una química supramolecular.
Ciencia de los materiales ciencia de los materiales.

Sus antecedentes:

Los fullerenos son moléculas de carbono esféricas con propiedades electrónicas únicas.
El aislamiento y la caracterización de isómeros específicos de fullereno, particularmente aquellos con alta simetría, siguen siendo un desafío.
La familia de fulerenos C72 tiene isómeros, pero el isómero primitivo no indexado (NIPR) ha sido elusivo.

Objetivo del estudio:

Para sintetizar y caracterizar el primitivo no indexado (NIPR, por sus siglas en inglés) isómero de C72 fullereno, largamente buscado.
Para investigar la estabilidad del isómero NIPR C72.
Para proporcionar datos cristalográficos para el NIPR C72 fullereno.

Principales métodos:

Aislamiento y purificación de derivados del fullereno.
Caracterización cristalográfica del compuesto sintetizado.
Espectrometría de masas para la confirmación estructural y el análisis de la desclorinación.

Principales resultados:

El fullereno primitivo no indexado (NIPR) estable, (#11188) C72, fue recuperado y caracterizado con éxito.
El fullereno fue aislado como un derivado tetraclorado, (#11188) C72Cl4.
La espectrometría de masas confirmó la fácil desclorinación de (#11188) C72Cl4, lo que respalda la estabilidad de la prístina (#11188) C72.

Conclusiones:

La síntesis y caracterización de (#11188) C72Cl4 proporciona una fuerte evidencia de la existencia y la estabilidad de la NIPR C72 fullereno.
Este hallazgo contribuye significativamente a la comprensión del isomerismo y la estabilidad del fullereno.
La fácil desclorinación sugiere aplicaciones potenciales en la química de fullereno y la ciencia de los materiales.

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