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Issue 6, 2007
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Direct synthesis of ordered mesoporous silica containing iodopropyl groups. A useful function for chemical modifications

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Abstract

In this paper, we report a clever approach permitting, in one step, the synthesis of ordered (hexagonal phase) mesoporous silica functionalized with iodopropyl groups [I(CH2)3] located in the pore channels. This material was obtained by the hydrolysis and co-condensation of tetraethylorthosilicate (TEOS) and iodopropyltriethoxysilane (I(CH2)3Si(OEt)3) in the presence of P123 as a non-ionic structure-directing agent and hydrogen iodide as an acid catalyst. All materials were characterised by X-ray diffraction measurements, transmission electron spectroscopy, nitrogen adsorption analyses, elemental analyses, and solid-state 13C and 29Si NMR spectroscopy. The accessibility and reactivity of this functional group was investigated, showing the advantage of the iodo group for the introduction of bulky or hydrophilic groups.

Graphical abstract: Direct synthesis of ordered mesoporous silica containing iodopropyl groups. A useful function for chemical modifications

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Article information


Submitted
01 Mar 2007
Accepted
13 Mar 2007
First published
30 Mar 2007

New J. Chem., 2007,31, 911-915
Article type
Paper

Direct synthesis of ordered mesoporous silica containing iodopropyl groups. A useful function for chemical modifications

J. Alauzun, A. Mehdi, C. Reyé and R. Corriu, New J. Chem., 2007, 31, 911
DOI: 10.1039/B703155F

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