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

Auteur(s): Greff Gaëlle, Arrachart Guilhem, Hermet P., Wadepohl Hubert, Almairac Robert, Maurin D., Sauvajol J.-L., Carcel Carole, Moreau Joël J.E., Dieudonne-George P., Wong Chi Man Michel, Bantignies J.-L.

(Article) Publié: Physical Chemistry Chemical Physics, vol. 14 p.5672-5679 (2012)


Ref HAL: hal-00683723_v1
PMID 22422291
DOI: 10.1039/c2cp40250e
WoS: 000302062200038
Exporter : BibTex | endNote
18 Citations
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.