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Nanostructuring of Hybrid Silicas: New Approach to Bridged Silsesquioxanes with Purine-Pyrimidine Base Pairs as Bridging Units

Published online by Cambridge University Press:  17 March 2011

Michel Wong Chi Man ,
Guilhem Arrachart ,
Carole Carcel ,
Joël J.E. Moreau ,
Christian Bonhomme ,
Florence Babonneau ,
Gaëlle Creff ,
Jean-Louis Bantignies ,
Philippe Dieudonne  and
Bruno Alonso
Michel Wong Chi Man
Affiliation:
Architectures Moléculaire et Matériaux Nanostructurés, ICG Montpellier (UMR 5253) UMIICNRS-ENSCM-UMI, 8 rue de l'école normale, Montpellier, 34296, France
Guilhem Arrachart
Affiliation:
Architectures Moléculaire et Matériaux Nanostructurés, ICG Montpellier (UMR 5253) UMIICNRS-ENSCM-UMI, 8 rue de l'école normale, Montpellier, 34296, France
Carole Carcel
Affiliation:
Architectures Moléculaire et Matériaux Nanostructurés, ICG Montpellier (UMR 5253) UMIICNRS-ENSCM-UMI, 8 rue de l'école normale, Montpellier, 34296, France
Joël J.E. Moreau
Affiliation:
Architectures Moléculaire et Matériaux Nanostructurés, ICG Montpellier (UMR 5253) UMIICNRS-ENSCM-UMI, 8 rue de l'école normale, Montpellier, 34296, France
Christian Bonhomme
Affiliation:
Laboratoire de Chimie de la Matière Condensée de Paris, 4 Place Jussieu, Paris, 75005, France
Florence Babonneau
Affiliation:
Laboratoire de Chimie de la Matière Condensée de Paris, 4 Place Jussieu, Paris, 75005, France
Gaëlle Creff
Affiliation:
Laboratoire des Colloïdes, Verres et Nanomatériaux, Place Eugène Bataillon, Montpellier, 34095, France
Jean-Louis Bantignies
Affiliation:
Laboratoire des Colloïdes, Verres et Nanomatériaux, Place Eugène Bataillon, Montpellier, 34095, France
Philippe Dieudonne
Affiliation:
Laboratoire des Colloïdes, Verres et Nanomatériaux, Place Eugène Bataillon, Montpellier, 34095, France
Bruno Alonso
Affiliation:
MACS, ICG Montpellier (UMR 5253) UMII-CNRS-ENSCM-UMI, 8 rue de l'école normale, Montpellier, 34296, France
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Abstract

A new route to synthesize hybrid silica-based network with bridging organic units via molecular recognition is described. The hydrolysis of two monosilylated complementary base pairs, one bearing an adenine fragment and the other a thymine fragment leads to the formation of a powdered sample that has been characterized by Scanning Electron Microscopy (SEM), Powder X-ray Diffraction (PXRD) FTIR and solid state NMR (1H, 13C and 29Si). This last technique proved to be extremely powerful to directly demonstrate the occurrence of heteroassembly of the nucleobase-based silylated fragments, through the use of two-dimensional 1H double-quanta MAS-NMR that could probe spatial proximities between the thymine NH groups and the adenine NH2 groups.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1007: Symposium S – Organic/Inorganic Hybrid Materials-2007 , 2007 , 1007-S02-03
Copyright
Copyright © Materials Research Society 2007

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References

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