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Issue 35, 2013
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Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum

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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.

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

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Publication details

The article was received on 16 Apr 2013, accepted on 29 Apr 2013 and first published on 29 Apr 2013


Article type: Paper
DOI: 10.1039/C3DT51005K
Citation: Dalton Trans., 2013,42, 12681-12687
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    Triisobutylaluminum: bulkier and yet more reactive towards silica surfaces than triethyl or trimethylaluminum

    A. Kermagoret, R. N. Kerber, M. P. Conley, E. Callens, P. Florian, D. Massiot, C. Copéret, F. Delbecq, X. Rozanska and P. Sautet, Dalton Trans., 2013, 42, 12681
    DOI: 10.1039/C3DT51005K

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