On the formation of smaller p-block endohedral fullerenes: Bonding analysis in the E@C20 (E = Si, Ge, Sn, Pb) series from relativistic DFT calculations

Alvaro Muñoz-Castro, R. Bruce King

Resultado de la investigación: Article

8 Citas (Scopus)

Resumen

Experimentally characterized endohedral metallofullerenes are of current interest in expanding the range of viable fullerenic structures and their applications. Smaller metallofullerenes, such as M@C28, show that several d- and f-block elements can be efficiently confined in relatively small carbon cages. This article explores the potential capabilities of the smallest fullerene cage, that is, C20, to encapsulate p-block elements from group 14, that is, E = Si, Ge, Sn, and Pb. Our interest relates to the bonding features and optical properties related to E@C20. The results indicate both s- and p-type concentric bonds, in contrast to the well explored endohedral structures encapsulating f-block elements. Our results suggest the E@C20 series to be a new family of viable endohedral fullerenes. In addition spectroscopic properties related to electron affinity, optical, and vibrational were modeled to gain further information useful for characterization. Characteristic optical patterns were studied predicting a distinctive first peak located between 400 and 250 nm, which is red-shifted going to the heavier encapsulated Group 14 atoms. Electron affinity properties expose different patterns useful to differentiate the hollow C20 fullerene to the proposed p-block endohedral counterparts.

Idioma originalEnglish
Páginas (desde-hasta)1661-1667
Número de páginas7
PublicaciónJournal of Computational Chemistry
Volumen38
N.º19
DOI
EstadoPublished - 15 jul 2017
Publicado de forma externa

Huella dactilar

DFT Calculations
Fullerenes
SiGe
Discrete Fourier transforms
Electron affinity
Cage
Affine transformation
Series
F-structure
Electron
Concentric
Differentiate
Chemical elements
Optical Properties
Carbon
Sand
Optical properties
Atoms
Range of data

ASJC Scopus subject areas

  • Chemistry(all)
  • Computational Mathematics

Citar esto

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On the formation of smaller p-block endohedral fullerenes : Bonding analysis in the E@C20 (E = Si, Ge, Sn, Pb) series from relativistic DFT calculations. / Muñoz-Castro, Alvaro; King, R. Bruce.

En: Journal of Computational Chemistry, Vol. 38, N.º 19, 15.07.2017, p. 1661-1667.

Resultado de la investigación: Article

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AU - King, R. Bruce

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