Catalysis Letters

, Volume 34, Issue 1, pp 65–73

Vapour phase deposition and thermal decarbonylation of Re2(CO)10 on gamma-alumina: infrared studies

  • E. Escalona Platero
  • F. Ruiz de Peralta
  • C. Otero Areán
Article

DOI: 10.1007/BF00808323

Cite this article as:
Escalona Platero, E., de Peralta, F.R. & Otero Areán, C. Catal Lett (1995) 34: 65. doi:10.1007/BF00808323

Abstract

Dirheniumdecacarbonyl vacuum sublimed onto mesoporous γ-alumina forms Lewis type adducts where an axial CO group is coordinated to an A13+ ion at the metal oxide surface, as revealed by IR spectroscopy. Vacuum heating of the surface adduct at 773 K brings about decarbonylation, with intermediate formation of a surface-bound mononuclear tricarbonyl which was completely decarbonylated on prolonged heating at the same temperature. The resulting material strongly chemisorbs CO to yield mainly a surface-bound pentacarbonyl species. This suggests that the supported metal remains primarily in a zero-valent and well dispersed state.

Keywords

gamma-aluminaRe2(CO)10vapour phase depositionthermal decarbonylationIR spectroscopy

Copyright information

© J.C. Baltzer AG, Science Publishers 1995

Authors and Affiliations

  • E. Escalona Platero
    • 1
  • F. Ruiz de Peralta
    • 1
  • C. Otero Areán
    • 1
  1. 1.Departamento de QuímicaUniversidad de las Islas BalearesPalma de MallorcaSpain