Stability of Metal-Encapsulating Boron Fullerene B40

Wei Fa; Shuang Chen; Seema Pande; Xiao Cheng Zeng

doi:10.1021/acs.jpca.5b07173

Stability of Metal-Encapsulating Boron Fullerene B₄₀

Wei Fa^*, Shuang Chen, Seema Pande, Xiao Cheng Zeng^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

85 Citations (Scopus)

Abstract

The structural stability of MB40 (M = Li, Na, K, Ba, and Tl) is investigated on the basis of density-functional theory calculations at the PBE0 level. Particular attention is placed on the relative stability between the endohedral and exohedral configurations of metalloborospherenes. It is found that the Na and Ba atoms can be stably encapsulated inside the B40 cage, whereas the Li, K, and Tl atoms favor the exohedral configuration where the dopant caps one of heptagons of B40 cage. In-depth analysis of the endohedral versus exohedral configurations with different dopants suggests that besides the comparable atomic size with the cage size, another key factor that can affect stability of endohedral versus exohedral configuration is the interaction between the dopant and B atoms. The infrared (IR) spectra of the endohedral C2v Na@B40 and exohedral Cs Na&B40 clusters are also computed, from which some useful spectral indictors may be used for identification of the structures in the future experiments.

Original language	English
Pages (from-to)	11208-11214
Journal	The Journal of Physical Chemistry A
Volume	119
Issue number	45
DOIs	https://doi.org/10.1021/acs.jpca.5b07173
Publication status	Published - 20 Oct 2015
Externally published	Yes

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title = "Stability of Metal-Encapsulating Boron Fullerene B40",

abstract = "The structural stability of MB40 (M = Li, Na, K, Ba, and Tl) is investigated on the basis of density-functional theory calculations at the PBE0 level. Particular attention is placed on the relative stability between the endohedral and exohedral configurations of metalloborospherenes. It is found that the Na and Ba atoms can be stably encapsulated inside the B40 cage, whereas the Li, K, and Tl atoms favor the exohedral configuration where the dopant caps one of heptagons of B40 cage. In-depth analysis of the endohedral versus exohedral configurations with different dopants suggests that besides the comparable atomic size with the cage size, another key factor that can affect stability of endohedral versus exohedral configuration is the interaction between the dopant and B atoms. The infrared (IR) spectra of the endohedral C2v Na@B40 and exohedral Cs Na&B40 clusters are also computed, from which some useful spectral indictors may be used for identification of the structures in the future experiments.",

author = "Wei Fa and Shuang Chen and Seema Pande and Zeng, {Xiao Cheng}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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T1 - Stability of Metal-Encapsulating Boron Fullerene B40

AU - Fa, Wei

AU - Chen, Shuang

AU - Pande, Seema

AU - Zeng, Xiao Cheng

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PY - 2015/10/20

Y1 - 2015/10/20

N2 - The structural stability of MB40 (M = Li, Na, K, Ba, and Tl) is investigated on the basis of density-functional theory calculations at the PBE0 level. Particular attention is placed on the relative stability between the endohedral and exohedral configurations of metalloborospherenes. It is found that the Na and Ba atoms can be stably encapsulated inside the B40 cage, whereas the Li, K, and Tl atoms favor the exohedral configuration where the dopant caps one of heptagons of B40 cage. In-depth analysis of the endohedral versus exohedral configurations with different dopants suggests that besides the comparable atomic size with the cage size, another key factor that can affect stability of endohedral versus exohedral configuration is the interaction between the dopant and B atoms. The infrared (IR) spectra of the endohedral C2v Na@B40 and exohedral Cs Na&B40 clusters are also computed, from which some useful spectral indictors may be used for identification of the structures in the future experiments.

AB - The structural stability of MB40 (M = Li, Na, K, Ba, and Tl) is investigated on the basis of density-functional theory calculations at the PBE0 level. Particular attention is placed on the relative stability between the endohedral and exohedral configurations of metalloborospherenes. It is found that the Na and Ba atoms can be stably encapsulated inside the B40 cage, whereas the Li, K, and Tl atoms favor the exohedral configuration where the dopant caps one of heptagons of B40 cage. In-depth analysis of the endohedral versus exohedral configurations with different dopants suggests that besides the comparable atomic size with the cage size, another key factor that can affect stability of endohedral versus exohedral configuration is the interaction between the dopant and B atoms. The infrared (IR) spectra of the endohedral C2v Na@B40 and exohedral Cs Na&B40 clusters are also computed, from which some useful spectral indictors may be used for identification of the structures in the future experiments.

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