Surface-linked metal cluster carbonyls: fixation, behaviour and reactivity of Rh6(CO)16 bonded to a phosphinated silica

J. L. Bilhou, V. Bilhou-Bougnol, W. F. Graydon*, Jean-Marie Maurice Basset, A. K. Smith

*Corresponding author for this work

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Abstract

The reaction of Rh6(CO)16 at 25°C with a phosphinated silica surface, LSiO2, gives rise to the formation of zerovalent particles linked to the support, which have probably kept the Rh6 cluster frame. Their carbonylation leads to the formation of Rh6(CO)16 - x (LSiO2)x where x seems to be equal to 3 and from which the carbonyl ligands are not easily dissociated. Interaction at 80 °C of Rh6(CO)16 with the phosphinated silica support leads to the formation of a mixture of Rh(0) and Rh(I) species, which are interconvertible by oxidation or reduction, respectively, under mild conditions. The carbonyl species obtained show a much higher thermal stability than those obtained under similar conditions on pure silica surface.

Original languageEnglish (US)
Pages (from-to)411-429
Number of pages19
JournalJournal of molecular catalysis
Volume8
Issue number4
DOIs
StatePublished - Jan 1 1980

ASJC Scopus subject areas

  • Engineering(all)

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