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. © 2013 The Royal Society of Chemistry.

Citation
Kermagoret A, Kerber RN, Conley MP, Callens E, Florian P, et al. (2013) Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum. Dalton Trans 42: 12681. Available: http://dx.doi.org/10.1039/c3dt51005k.

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.

Publisher
Royal Society of Chemistry (RSC)

Journal
Dalton Transactions

DOI
10.1039/c3dt51005k

PubMed ID
23715288

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