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; J. M. Basset; A. K. Smith

doi:10.1016/0304-5102(80)80081-2

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^*, J. M. Basset, A. K. Smith

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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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 language	English (US)
Pages (from-to)	411-429
Number of pages	19
Journal	Journal of molecular catalysis
Volume	8
Issue number	4
DOIs	https://doi.org/10.1016/0304-5102(80)80081-2
State	Published - Jun 1980
Externally published	Yes

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General Engineering

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

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.",

author = "Bilhou, {J. L.} and V. Bilhou-Bougnol and Graydon, {W. F.} and Basset, {J. M.} and Smith, {A. K.}",

year = "1980",

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doi = "10.1016/0304-5102(80)80081-2",

language = "English (US)",

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T1 - Surface-linked metal cluster carbonyls

T2 - fixation, behaviour and reactivity of Rh6(CO)16 bonded to a phosphinated silica

AU - Bilhou, J. L.

AU - Bilhou-Bougnol, V.

AU - Graydon, W. F.

AU - Basset, J. M.

AU - Smith, A. K.

PY - 1980/6

Y1 - 1980/6

N2 - 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.

AB - 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.

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JF - Journal of molecular catalysis

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

Abstract

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