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

doi:10.1039/c7cc06041f

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

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

13 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 language	English (US)
Pages (from-to)	11338-11341
Number of pages	4
Journal	Chem. Commun.
Volume	53
Issue number	82
DOIs	https://doi.org/10.1039/c7cc06041f
State	Published - 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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https://repository.kaust.edu.sa/bitstream/10754/625827/1/Merle_Manuscript_Revised.pdf

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@article{32c67903b5fb436f942d90de3aeeee6b,

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

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.",

author = "Nicolas Merle and {Le Qu{\'e}m{\'e}ner}, Fr{\'e}d{\'e}ric and Samir Barman and Manoja Samantaray and Szeto, {Kai C.} and {De Mallmann}, Aimery and Mostafa Taoufik and Jean-Marie Basset",

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).",

year = "2017",

doi = "10.1039/c7cc06041f",

language = "English (US)",

volume = "53",

pages = "11338--11341",

journal = "Chem. Commun.",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "82",

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T1 - Well-defined silica supported bipodal molybdenum oxo alkyl complexes: a model of the active sites of industrial olefin metathesis catalysts

AU - Merle, Nicolas

AU - Le Quéméner, Frédéric

AU - Barman, Samir

AU - Samantaray, Manoja

AU - Szeto, Kai C.

AU - De Mallmann, Aimery

AU - Taoufik, Mostafa

AU - Basset, Jean-Marie

N1 - 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).

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

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U2 - 10.1039/c7cc06041f

DO - 10.1039/c7cc06041f

M3 - Article

C2 - 28967651

SN - 1359-7345

VL - 53

SP - 11338

EP - 11341

JO - Chem. Commun.

JF - Chem. Commun.

IS - 82

ER -

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

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