Surface modification induced shielding effects on electron orbital coupling in metallofullerene

Shukuan Wang, Baoyun Sun, Dongmei Yue, Long Jing, Rui He, Tongxiang Ren, Jinquan Dong, Hui Yuan, Gengmei Xing, Jiaou Wang, Yuliang Zhao, Kurash Ibrahim

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

The electronic properties of four metallofullerenol samples (La@C 82(OH) 32, La@C 82(OH) 24, La@C 82(OH) 18, La@C 82(OH) 12) and La@C 82 were investigated by synchrotron radiation photo-electron emission spectra (PES). A new emission peak with binding energy of 13.9 eV, which is attributed to La 5d orbitals coupling with nanocage orbitals, is observed in PES of La@C 82 for the first time. This suggestion is also supported by previous DFT calculations. Furthermore, the new emission peak disappears when the surface of La@C 82 is modified with specific numbers of OH groups, which means the electron orbital coupling between inner metallic atoms and outer nanocage in metallofullerene could be shielded by surface modifications on the outer nanocage.

Original languageEnglish (US)
Pages (from-to)8625-8631
Number of pages7
JournalJournal of Nanoscience and Nanotechnology
Volume10
Issue number12
DOIs
StatePublished - Dec 1 2010

Keywords

  • Electronic property
  • Fullerene
  • PES
  • Surface modification
  • XPS

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

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