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)|
|State||Published - 2013|
Bibliographical noteKAUST 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.