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Article Dans Une Revue Physical Chemistry Chemical Physics Année : 2012

Investigation on the vibrational and structural properties of a self-structured bridged silsesquioxane

Résumé

The crystalline structure of ureidopyrimidinone-based silane (UPY) has been determined. The local and long range order structuring of the bridged silsesquioxane (MUPY) resulting from the sol-gel hydrolysis-condensation of the former precursor has been investigated by MFTIR (Mid Fourier Transform InfraRed) combined with DFT (Density Functional Theory) and XRD (X-ray diffraction) studies. These studies showed that a long range structuring exists within the organic fragments with the transcription of the DDAA (Donor-Donor-Acceptor-Acceptor) H-bonding array from UPY to MUPY whereas a disordered siloxane network was revealed in the hybrid material.

Domaines

Matériaux
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Dates et versions

hal-00683723 , version 1 (29-03-2012)

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Citer

Gaëlle Greff, Guilhem Arrachart, Patrick Hermet, Hubert Wadepohl, Robert Almairac, et al.. Investigation on the vibrational and structural properties of a self-structured bridged silsesquioxane. Physical Chemistry Chemical Physics, 2012, 14, pp.5672-5679. ⟨10.1039/c2cp40250e⟩. ⟨hal-00683723⟩
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