Photoelectron spectra of thulium atoms encapsulated C82 fullerene, Tm2@C82 (III) and Tm2C 2@C82 (III)

Takafumi Miyazaki, Youji Tokumoto, Ryohei Sumii, Hajime Yagi, Noriko Izumi, Hisanori Shinohara, Shojun Hino

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Ultraviolet photoelectron spectra (UPS) and X-ray photoelectron spectra (XPS) of two thulium atoms and thulium-carbide cluster entrapped fullerenes, Tm2@C82 (III) and Tm2C2@C 82 (III), were measured using synchrotron radiation and MgKα X-ray light sources. The UPS spectral onset energy of these endohedral fullerenes is around 0.9 eV, which is smaller than that of 1.2 eV of empty C82. The UPS of Tm2@C82 (III) and Tm 2C2@C82 (III) resemble each other. Further, the UPS of Tm2@C82 (III), Y2@C82-C 3v and Er2@C82-C3 v are almost identical and as well as are Tm2C 2@C82 (III), Y2C2@C 82-C3v and Er2C2@C 82-C3v. The XPS Tm4d5/2 peaks of Tm2@C82 and Tm2C2@C82 appear at higher binding energy region than that of Tm@C82, which suggests the oxidation states of Tm atoms in Tm2@C82 (III) and Tm2C2@C82 are higher than that in Tm@C82.

Original languageEnglish
Pages (from-to)47-50
Number of pages4
JournalChemical Physics
Volume431-432
DOIs
Publication statusPublished - Mar 18 2014
Externally publishedYes

Fingerprint

Thulium
Fullerenes
thulium
Photoelectrons
fullerenes
photoelectrons
Atoms
atoms
X rays
x rays
Synchrotron radiation
Binding energy
carbides
Carbides
Light sources
synchrotron radiation
light sources
binding energy
Oxidation
oxidation

Keywords

  • Electronic structure
  • Endohedral fullerenes
  • Tm atoms encapsulated C cage
  • Ultraviolet photoelectron spectroscopy
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Photoelectron spectra of thulium atoms encapsulated C82 fullerene, Tm2@C82 (III) and Tm2C 2@C82 (III). / Miyazaki, Takafumi; Tokumoto, Youji; Sumii, Ryohei; Yagi, Hajime; Izumi, Noriko; Shinohara, Hisanori; Hino, Shojun.

In: Chemical Physics, Vol. 431-432, 18.03.2014, p. 47-50.

Research output: Contribution to journalArticle

Miyazaki, Takafumi ; Tokumoto, Youji ; Sumii, Ryohei ; Yagi, Hajime ; Izumi, Noriko ; Shinohara, Hisanori ; Hino, Shojun. / Photoelectron spectra of thulium atoms encapsulated C82 fullerene, Tm2@C82 (III) and Tm2C 2@C82 (III). In: Chemical Physics. 2014 ; Vol. 431-432. pp. 47-50.
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abstract = "Ultraviolet photoelectron spectra (UPS) and X-ray photoelectron spectra (XPS) of two thulium atoms and thulium-carbide cluster entrapped fullerenes, Tm2@C82 (III) and Tm2C2@C 82 (III), were measured using synchrotron radiation and MgKα X-ray light sources. The UPS spectral onset energy of these endohedral fullerenes is around 0.9 eV, which is smaller than that of 1.2 eV of empty C82. The UPS of Tm2@C82 (III) and Tm 2C2@C82 (III) resemble each other. Further, the UPS of Tm2@C82 (III), Y2@C82-C 3v and Er2@C82-C3 v are almost identical and as well as are Tm2C 2@C82 (III), Y2C2@C 82-C3v and Er2C2@C 82-C3v. The XPS Tm4d5/2 peaks of Tm2@C82 and Tm2C2@C82 appear at higher binding energy region than that of Tm@C82, which suggests the oxidation states of Tm atoms in Tm2@C82 (III) and Tm2C2@C82 are higher than that in Tm@C82.",
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AU - Tokumoto, Youji

AU - Sumii, Ryohei

AU - Yagi, Hajime

AU - Izumi, Noriko

AU - Shinohara, Hisanori

AU - Hino, Shojun

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AB - Ultraviolet photoelectron spectra (UPS) and X-ray photoelectron spectra (XPS) of two thulium atoms and thulium-carbide cluster entrapped fullerenes, Tm2@C82 (III) and Tm2C2@C 82 (III), were measured using synchrotron radiation and MgKα X-ray light sources. The UPS spectral onset energy of these endohedral fullerenes is around 0.9 eV, which is smaller than that of 1.2 eV of empty C82. The UPS of Tm2@C82 (III) and Tm 2C2@C82 (III) resemble each other. Further, the UPS of Tm2@C82 (III), Y2@C82-C 3v and Er2@C82-C3 v are almost identical and as well as are Tm2C 2@C82 (III), Y2C2@C 82-C3v and Er2C2@C 82-C3v. The XPS Tm4d5/2 peaks of Tm2@C82 and Tm2C2@C82 appear at higher binding energy region than that of Tm@C82, which suggests the oxidation states of Tm atoms in Tm2@C82 (III) and Tm2C2@C82 are higher than that in Tm@C82.

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