Multiple-decker sandwich complexes of lanthanide 1,3,5,7- cyclooctatetraene [Ln(n)(C8H8)(m)] (Ln = Ce, Nd, Eu, Ho, and Yb); localized ionic bonding structure

Tsuyoshi Kurikawa, Yuichi Negishi, Fumitaka Hayakawa, Satoshi Nagao, Ken Miyajima, Atsushi Nakajima, Koji Kaya

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

Organometallic lanthanide complexes of Ln(n)(C8H8)(m) (Ln = lanthanide metals of Ce, Nd, Eu, Ho, and Yb; C8H8 := 1,3,5,7-cyclooctatetraene) were produced by a combination of laser vaporization and molecular beam methods. The complexes having (n, m) = (n, n + 1) for n = 1-5 were prominently produced as magic numbers in the mass spectra. Using mass spectrometry, photoionization spectroscopy, and photoelectron spectroscopy, it is concluded that these magic-numbered complexes form multiple decker sandwich structures in which Ln atoms and C8H8 molecules are alternately piled up. The obtained spectroscopic data show that these sandwich complexes are formed through ionic bonds and are charge transfer complexes, where the Ln atoms are multiply charged cations of Ln(k+) (k = 2 and 3) and C8H8 molecules are multiply charged anions.

Original languageEnglish
Pages (from-to)11766-11772
Number of pages7
JournalJournal of the American Chemical Society
Volume120
Issue number45
DOIs
Publication statusPublished - 1998 Nov 18

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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