Photoelectron spectroscopy of iron carbonyl cluster anions (Fen(CO)- m, n = 1-4)

Atsushi Nakajima, Tetsuya Taguwa, Koji Kaya

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Abstract

Photoelectron spectra of iron-carbonyl cluster anions (Fen(CO)- m) were measured in the gas phase at the photon energy of 4.66 eV, using a magnetic bottle electron spectrometer. The iron-carbonyl cluster anions were produced by slow electron attachment of less than 1 eV to a supersonic expansion of Fe(CO)5 seeded in a He carrier gas. The photoelectron spectra of the Fen(CO)- 5n-1 anions show unresolved broad features, and the threshold energy (ET) and the vertical detachment energy (VDE) were determined: The ET of Fen(CO)- 5n-1 gradually increases by 0.1-0.3 eV with the cluster size. The study suggests that the iron carbonyl cluster anions produced are van der Waals clusters, in which Fe(CO)- 4 works as an ion core.

Original languageEnglish
Pages (from-to)436-440
Number of pages5
JournalChemical Physics Letters
Volume221
Issue number5-6
DOIs
Publication statusPublished - 1994 Apr 29
Externally publishedYes

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

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