Structures of Isolated Tellurium Chains Encapsulated Inside Carbon Nanotube

Hiroyuki Ikemoto; Toshihiko Fujimori; Takafumi Miyanaga; Shogo Kato; Fabio Iesari; Koki Urita

doi:10.1021/acs.jpcc.0c08506

Structures of Isolated Tellurium Chains Encapsulated Inside Carbon Nanotube

Hiroyuki Ikemoto^*, Toshihiko Fujimori, Takafumi Miyanaga, Shogo Kato, Fabio Iesari, Koki Urita

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The structures of encapsulated Te chains in carbon nanotubes (Te@CNTs) were investigated using X-ray absorption fine structure analysis, including analyses of extended X-ray absorption fine structure and X-ray absorption near edge structure. The chains are encapsulated in CNTs as isolated chains. In the Te@CNT, the covalent bond length is 2.76 Å and the Einstein temperature is 200 K, which are 0.08 Å shorter and 43 K higher than those of trigonal Te (t-Te), respectively. These results imply that the covalent bond of Te@CNT is explicitly stronger than that of t-Te, which is caused by the interchain interaction resulting from the overlap between the lone-pair orbital and the antibonding orbital on the adjacent chain.

Original language	English
Pages (from-to)	26043-26047
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	124
Issue number	47
DOIs	https://doi.org/10.1021/acs.jpcc.0c08506
State	Published - 2020/11/25

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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title = "Structures of Isolated Tellurium Chains Encapsulated Inside Carbon Nanotube",

abstract = "The structures of encapsulated Te chains in carbon nanotubes (Te@CNTs) were investigated using X-ray absorption fine structure analysis, including analyses of extended X-ray absorption fine structure and X-ray absorption near edge structure. The chains are encapsulated in CNTs as isolated chains. In the Te@CNT, the covalent bond length is 2.76 {\AA} and the Einstein temperature is 200 K, which are 0.08 {\AA} shorter and 43 K higher than those of trigonal Te (t-Te), respectively. These results imply that the covalent bond of Te@CNT is explicitly stronger than that of t-Te, which is caused by the interchain interaction resulting from the overlap between the lone-pair orbital and the antibonding orbital on the adjacent chain.",

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T1 - Structures of Isolated Tellurium Chains Encapsulated Inside Carbon Nanotube

AU - Ikemoto, Hiroyuki

AU - Fujimori, Toshihiko

AU - Miyanaga, Takafumi

AU - Kato, Shogo

AU - Iesari, Fabio

AU - Urita, Koki

PY - 2020/11/25

Y1 - 2020/11/25

N2 - The structures of encapsulated Te chains in carbon nanotubes (Te@CNTs) were investigated using X-ray absorption fine structure analysis, including analyses of extended X-ray absorption fine structure and X-ray absorption near edge structure. The chains are encapsulated in CNTs as isolated chains. In the Te@CNT, the covalent bond length is 2.76 Å and the Einstein temperature is 200 K, which are 0.08 Å shorter and 43 K higher than those of trigonal Te (t-Te), respectively. These results imply that the covalent bond of Te@CNT is explicitly stronger than that of t-Te, which is caused by the interchain interaction resulting from the overlap between the lone-pair orbital and the antibonding orbital on the adjacent chain.

AB - The structures of encapsulated Te chains in carbon nanotubes (Te@CNTs) were investigated using X-ray absorption fine structure analysis, including analyses of extended X-ray absorption fine structure and X-ray absorption near edge structure. The chains are encapsulated in CNTs as isolated chains. In the Te@CNT, the covalent bond length is 2.76 Å and the Einstein temperature is 200 K, which are 0.08 Å shorter and 43 K higher than those of trigonal Te (t-Te), respectively. These results imply that the covalent bond of Te@CNT is explicitly stronger than that of t-Te, which is caused by the interchain interaction resulting from the overlap between the lone-pair orbital and the antibonding orbital on the adjacent chain.

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M3 - 学術論文

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 47

ER -

Structures of Isolated Tellurium Chains Encapsulated Inside Carbon Nanotube

Abstract

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