Well-defined silica supported bipodal molybdenum oxo alkyl complexes: a model of the active sites of industrial olefin metathesis catalysts

Nicolas Merle, Frédéric Le Quéméner, Samir Barman, Manoja Samantaray, Kai C. Szeto, Aimery De Mallmann, Mostafa Taoufik, Jean-Marie Basset

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12 Scopus citations

Abstract

A well-defined, silica-supported molybdenum oxo alkyl species, ([triple bond, length as m-dash]SiO-)2Mo([double bond, length as m-dash]O)(CH2tBu)2, was prepared by the selective grafting of Mo([double bond, length as m-dash]O)(CH2tBu)3Cl onto a silica partially dehydroxylated at 200 °C using a rigorous surface organometallic chemistry approach. The immobilized bipodal surface species, partly resembling the active species of industrial MoO3/SiO2 olefin metathesis catalysts, exhibited excellent functional group tolerance in conjunction with its high activity in homocoupling, self and ring closing olefin metathesis.
Original languageEnglish (US)
Pages (from-to)11338-11341
Number of pages4
JournalChem. Commun.
Volume53
Issue number82
DOIs
StatePublished - 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This study was supported by the Competitive Research Grant Program, supported by the KAUST Research Fund (project # 2174 CRG3). We would like to thank Olivier Mathon for his help during the recording of the XAS spectra on the BM23 beam-line at ESRF (experiment code IN-986).

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