Dehydroxylation Route to Surface Modification of Mesoporous Silicas by Using Grignard Reagents

Electron‐deficient silicon atoms, which are generated on a silica surface by evacuation above 900 K, are attacked by Grignard reagents (see picture). This reactivity provides a novel route for the surface modification of mesoporous silicas as the organic groups are strongly bound to the surface thro...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2004-07, Vol.43 (29), p.3839-3842
Main Authors: Lim, Jung Eun, Shim, Chang Bo, Kim, Ji Man, Lee, Bun Yeoul, Yie, Jae Eui
Format: Article
Language:English
Subjects:
Grignard reaction
mesoporous materials
silica
surface chemistry
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Summary:Electron‐deficient silicon atoms, which are generated on a silica surface by evacuation above 900 K, are attacked by Grignard reagents (see picture). This reactivity provides a novel route for the surface modification of mesoporous silicas as the organic groups are strongly bound to the surface through the formation of SiC bonds. The pore structures of the mesoporous silicas are not destroyed by the modification.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200454076