Photoelectron spectroscopy of iron-sulfur cluster anions

Nan Zhang, Takasuke Hayase, Hiroshi Kawamata, Kojiro Nakao, Atsushi Nakajima, Koji Kaya

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57 Citations (Scopus)


Iron-sulfur cluster anions (FenSm-, n=1-6, m=1-6) have been studied using photoelectron spectroscopy (PES) with a magnetic-bottle-type time-of-flight electron spectrometer. The FenSm-. cluster anions were formed in a laser vaporization cluster source. It was found that the stable cluster ions are the ones with compositions of n=m and n=m±1. The electron affinities were measured from the onsets of the PES spectra. Three low-lying electronic states were observed for FeS. The PES spectra of FenS- (n=1-4) series show a unique similarity, indicating that the Fe atom addition to FeS- has little effect on the electronic property of FeS. The PES spectra of FenS2- series show a similarity among the cluster anions with n=2-4, showing that Fe2S2- is the structural framework of these clusters. For FenS3- series, Fe3S3- is proposed to be the structural framework. The electronic properties and geometrical structures of the clusters are discussed.

Original languageEnglish
Pages (from-to)3413-3419
Number of pages7
JournalJournal of Chemical Physics
Issue number10
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

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


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