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

✍ Scribed by Atsushi Nakajima; Tetsuya Taguwa; Koji Kaya

• Book ID: 103034933
• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 443 KB
• Volume: 221
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(94)00301-7

✦ Synopsis

Photoelectron spectra of iron-carbonyl cluster anions (Fe,( CO); ) 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 Fe,(CO),_ 1 anions show unresolved broad features, and the threshold energy (Er) and the vertical detachment energy (VDE) were determined: The ET of Fe,(CO)&t 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(C0); works as an ion core.