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

Abstract

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. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z54076_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.