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
MetadataShow full item record
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. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.
Showing items related by title, author, creator and subject.
Evaluation of bonding, electron affinity, and optical properties of M@C28 (M = Zr, Hf, Th, and U): Role of d- and f-orbitals in endohedral fullerenes from relativistic DFT calculations (2020) Muñoz-Castro A.; Bruce King R. (John Wiley and Sons Inc., 2017)
Symmetry lowering by cage doping in spherical superatoms: Evaluation of electronic and optical properties of 18-electron W@Au 12 Pt n (n = 0-4) superatomic clusters from relativistic DFT calculations (2020) Gam F.; Arratia-Perez R.; Kahlal S.; Saillard J.-Y.; Muñoz-Castro A. (John Wiley and Sons Inc., 2019)
A superatomic molecule under the spin-orbit coupling: Insights from the electronic properties in the thiolate-protected Au38(SR)24 cluster (2020) Muñoz-Castro A. (John Wiley and Sons Inc., 2018)