Olefin metathesis with zerovalent precursor complexes of tungsten (W(CO)5L) supported on η alumina. An infrared investigation

J. L. Bilhou; A. Theolier; A. K. Smith; J. M. Basset

doi:10.1016/0304-5102(78)80031-5

Olefin metathesis with zerovalent precursor complexes of tungsten (W(CO)₅L) supported on η alumina. An infrared investigation

J. L. Bilhou^*, A. Theolier, A. K. Smith, J. M. Basset

^*Corresponding author for this work

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

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Abstract

Interaction of zerovalent precursor complexes of tungsten (W(CO)₅L) with the surface of η alumina results in a highly active metathesis catalyst. However, in order to reach this high level of activity it is necessary that the support is highly dehydrated and exhibits a Lewis acidity. Infrared spectro- scopy indicates that the precursor complex is interacting with the surface through WCO → Al complexation. This complexation gives rise to a strong decrease in electron density on tungsten which results in the departure of the ligand, L. A coordinatively unsaturated carbonyl species seems to be stabilised on the surface.

Original language	English (US)
Pages (from-to)	245-257
Number of pages	13
Journal	Journal of molecular catalysis
Volume	3
Issue number	4
DOIs	https://doi.org/10.1016/0304-5102(78)80031-5
State	Published - Jan 1978
Externally published	Yes

ASJC Scopus subject areas

General Engineering

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title = "Olefin metathesis with zerovalent precursor complexes of tungsten (W(CO)5L) supported on η alumina. An infrared investigation",

abstract = "Interaction of zerovalent precursor complexes of tungsten (W(CO)5L) with the surface of η alumina results in a highly active metathesis catalyst. However, in order to reach this high level of activity it is necessary that the support is highly dehydrated and exhibits a Lewis acidity. Infrared spectro- scopy indicates that the precursor complex is interacting with the surface through WCO → Al complexation. This complexation gives rise to a strong decrease in electron density on tungsten which results in the departure of the ligand, L. A coordinatively unsaturated carbonyl species seems to be stabilised on the surface.",

author = "Bilhou, {J. L.} and A. Theolier and Smith, {A. K.} and Basset, {J. M.}",

year = "1978",

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doi = "10.1016/0304-5102(78)80031-5",

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journal = "Journal of molecular catalysis",

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T1 - Olefin metathesis with zerovalent precursor complexes of tungsten (W(CO)5L) supported on η alumina. An infrared investigation

AU - Bilhou, J. L.

AU - Theolier, A.

AU - Smith, A. K.

AU - Basset, J. M.

PY - 1978/1

Y1 - 1978/1

N2 - Interaction of zerovalent precursor complexes of tungsten (W(CO)5L) with the surface of η alumina results in a highly active metathesis catalyst. However, in order to reach this high level of activity it is necessary that the support is highly dehydrated and exhibits a Lewis acidity. Infrared spectro- scopy indicates that the precursor complex is interacting with the surface through WCO → Al complexation. This complexation gives rise to a strong decrease in electron density on tungsten which results in the departure of the ligand, L. A coordinatively unsaturated carbonyl species seems to be stabilised on the surface.

AB - Interaction of zerovalent precursor complexes of tungsten (W(CO)5L) with the surface of η alumina results in a highly active metathesis catalyst. However, in order to reach this high level of activity it is necessary that the support is highly dehydrated and exhibits a Lewis acidity. Infrared spectro- scopy indicates that the precursor complex is interacting with the surface through WCO → Al complexation. This complexation gives rise to a strong decrease in electron density on tungsten which results in the departure of the ligand, L. A coordinatively unsaturated carbonyl species seems to be stabilised on the surface.

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IS - 4

ER -

Olefin metathesis with zerovalent precursor complexes of tungsten (W(CO)₅L) supported on η alumina. An infrared investigation

Abstract

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