Effect of Support on Metathesis of n-Decane: Drastic Improvement in Alkane Metathesis with WMe5 Linked to Silica-Alumina

Manoja Samantaray, Raju Dey, Edy Abou-Hamad, Ali Imad Ali Hamieh, Jean-Marie Basset

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

[WMe6] (1) supported on the surface of SiO2-Al2O3(500) (2) has been extensively characterized by solid-state NMR spectroscopy, elemental analysis, and gas quantification, which clearly reveal the formation of a mixture of monopodal and bipodal species with the migration of methyl from W to Al. The supported species SiO2-Al2O3(500) (2) transformed at 120°C into two types of carbynic centers, one of which is cationic and the other neutral. These species are very efficient for the metathesis of n-decane. Comparison with already-synthesized neutral bipodal tungsten indicates that the high increase in activity is due to the cationic character of the grafted tungsten.
Original languageEnglish (US)
Pages (from-to)6100-6106
Number of pages7
JournalChemistry - A European Journal
Volume21
Issue number16
DOIs
StatePublished - Mar 11 2015

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors acknowledge the KAUST Nuclear Magnetic Resonance Core Lab and technical assistance from Dr. Kazuo Yamauchi. The authors also thank Professor Lyndon Emsley, Dr. Emmanuel Callens, and Dr. Nassima Riache for fruitful discussions. This work was supported by funds from King Abdullah University of Science and Technology.

ASJC Scopus subject areas

  • General Chemistry

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