Surface supported metal cluster carbonyls. Chemisorption, reactivity, and decomposition of Ru3(CO)12 on silica

G. M. Zanderighi*, C. Dossi, R. Ugo, R. Psaro, A. Theolier, A. Choplin, L. D'Ornelas, Jean-Marie Maurice Basset

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

Ru3(CO)12 supported on silica is oxidised by surface SiOH groups in presence of water and/or dioxygen to form oxidised species, probably incorporated into the silica surface, such as RuII(CO)n(OSi{A figure is presented})2 (n = 2, 3). The presence of air (involving both water and dioxygen) greatly accelerates this oxidative process. When supported in total absence of dioxygen, Ru3(CO)12 reacts with surface silanol groups to produce the grafted cluster HRu3(CO)10(OSi{A figure is presented}), which has been characterized by chemical methods and by infrared and Raman spectroscopies. The grafted cluster is not very stable; it is an intermediate in the formation, by controlled thermal decomposition, of both small metallic particles and some RuII(CO)n(OSi{A figure is presented})2 (n = 2, 3) carbonyl surface species (this oxidation by surface protons is also evidenced by the formation of molecular hydrogen). The formation of metallic ruthenium accounts for the production of hydrocarbons during the thermal decomposition.

Original languageEnglish (US)
Pages (from-to)127-146
Number of pages20
JournalJournal of Organometallic Chemistry
Volume296
Issue number1-2
DOIs
StatePublished - Nov 26 1985

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Surface supported metal cluster carbonyls. Chemisorption, reactivity, and decomposition of Ru<sub>3</sub>(CO)<sub>12</sub> on silica'. Together they form a unique fingerprint.

Cite this