Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum

Anthony Kermagoret; Rachel Nathaniel Kerber; Matthew P. Conley; Emmanuel Callens; Pierre Florian; Dominique Massiot; Christophe Copéret; Françoise Delbecq; Xavier Rozanska; Philippe Sautet

doi:10.1039/c3dt51005k

Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum

Anthony Kermagoret, Rachel Nathaniel Kerber, Matthew P. Conley, Emmanuel Callens, Pierre Florian, Dominique Massiot, Christophe Copéret, Françoise Delbecq, Xavier Rozanska, Philippe Sautet

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

33 Scopus citations

Abstract

Triisobutylaluminum reacts with silica yielding three different Al sites according to high-field aluminum-27 NMR and first principle calculations: a quadruply grafted dimeric surface species and two incorporated Al(O)x species (x = 4 or 5). This result is in stark contrast to the bis-grafted species that forms during Et3Al silica grafting. Thus the isobutyl ligands, which render R3Al monomeric, lead to greater reactivity towards the silica surface. © 2013 The Royal Society of Chemistry.

Original language	English (US)
Pages (from-to)	12681
Journal	Dalton Transactions
Volume	42
Issue number	35
DOIs	https://doi.org/10.1039/c3dt51005k
State	Published - 2013
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): UK-C0017
Acknowledgements: This publication is based on work supported by Award No. UK-C0017, made by King Abdullah University of Science and Technology (KAUST) and by the TGE RMN THC Fr3050.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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10.1039/c3dt51005k

Cite this

@article{b19646179614492c96564da3658b98e6,

title = "Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum",

abstract = "Triisobutylaluminum reacts with silica yielding three different Al sites according to high-field aluminum-27 NMR and first principle calculations: a quadruply grafted dimeric surface species and two incorporated Al(O)x species (x = 4 or 5). This result is in stark contrast to the bis-grafted species that forms during Et3Al silica grafting. Thus the isobutyl ligands, which render R3Al monomeric, lead to greater reactivity towards the silica surface. {\textcopyright} 2013 The Royal Society of Chemistry.",

author = "Anthony Kermagoret and Kerber, {Rachel Nathaniel} and Conley, {Matthew P.} and Emmanuel Callens and Pierre Florian and Dominique Massiot and Christophe Cop{\'e}ret and Fran{\c c}oise Delbecq and Xavier Rozanska and Philippe Sautet",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): UK-C0017 Acknowledgements: This publication is based on work supported by Award No. UK-C0017, made by King Abdullah University of Science and Technology (KAUST) and by the TGE RMN THC Fr3050. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2013",

doi = "10.1039/c3dt51005k",

language = "English (US)",

volume = "42",

pages = "12681",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "35",

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TY - JOUR

T1 - Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum

AU - Kermagoret, Anthony

AU - Kerber, Rachel Nathaniel

AU - Conley, Matthew P.

AU - Callens, Emmanuel

AU - Florian, Pierre

AU - Massiot, Dominique

AU - Copéret, Christophe

AU - Delbecq, Françoise

AU - Rozanska, Xavier

AU - Sautet, Philippe

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): UK-C0017 Acknowledgements: This publication is based on work supported by Award No. UK-C0017, made by King Abdullah University of Science and Technology (KAUST) and by the TGE RMN THC Fr3050. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2013

Y1 - 2013

N2 - Triisobutylaluminum reacts with silica yielding three different Al sites according to high-field aluminum-27 NMR and first principle calculations: a quadruply grafted dimeric surface species and two incorporated Al(O)x species (x = 4 or 5). This result is in stark contrast to the bis-grafted species that forms during Et3Al silica grafting. Thus the isobutyl ligands, which render R3Al monomeric, lead to greater reactivity towards the silica surface. © 2013 The Royal Society of Chemistry.

AB - Triisobutylaluminum reacts with silica yielding three different Al sites according to high-field aluminum-27 NMR and first principle calculations: a quadruply grafted dimeric surface species and two incorporated Al(O)x species (x = 4 or 5). This result is in stark contrast to the bis-grafted species that forms during Et3Al silica grafting. Thus the isobutyl ligands, which render R3Al monomeric, lead to greater reactivity towards the silica surface. © 2013 The Royal Society of Chemistry.

UR - http://hdl.handle.net/10754/600086

UR - http://xlink.rsc.org/?DOI=c3dt51005k

UR - http://www.scopus.com/inward/record.url?scp=84882261067&partnerID=8YFLogxK

U2 - 10.1039/c3dt51005k

DO - 10.1039/c3dt51005k

M3 - Article

C2 - 23715288

SN - 1477-9226

VL - 42

SP - 12681

JO - Dalton Transactions

JF - Dalton Transactions

IS - 35

ER -

Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum

Abstract

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