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Kermagoret A, Kerber RN, Conley MP, et al. Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum. Dalton Trans. 2013;42(35):12681-7doi: 10.1039/c3dt51005k.
Kermagoret, A., Kerber, R. N., Conley, M. P., Callens, E., Florian, P., Massiot, D., Copéret, C., Delbecq, F., Rozanska, X., & Sautet, P. (2013). Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum. Dalton transactions (Cambridge, England : 2003), 42(35), 12681-7. https://doi.org/10.1039/c3dt51005k
Kermagoret, Anthony, et al. "Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum." Dalton transactions (Cambridge, England : 2003) vol. 42,35 (2013): 12681-7. doi: https://doi.org/10.1039/c3dt51005k
Kermagoret A, Kerber RN, Conley MP, Callens E, Florian P, Massiot D, Copéret C, Delbecq F, Rozanska X, Sautet P. Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum. Dalton Trans. 2013 Sep 21;42(35):12681-7. doi: 10.1039/c3dt51005k. PMID: 23715288.
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Dalton Trans. 2013 Sep 21;42(35):12681-7. doi: 10.1039/c3dt51005k.

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

Dalton transactions (Cambridge, England : 2003)

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

Affiliations

  1. Laboratoire de Chimie Organometallique de Surface, CNRS, UMR 5265 C2P2, Universite Lyon 1, CPE Lyon, France.

PMID: 23715288 DOI: 10.1039/c3dt51005k

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.

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