Studies of silicophosphate derivatives by 31P-->29Si CP MAS NMR

Clarisse Lejeune; Cristina Coelho; Laure Bonhomme-Coury; Thierry Azaïs; Jocelyne Maquet; Christian Bonhomme

doi:10.1016/j.ssnmr.2005.02.001

Studies of silicophosphate derivatives by 31P-->29Si CP MAS NMR

Solid State Nucl Magn Reson. 2005 Jun;27(4):242-6. doi: 10.1016/j.ssnmr.2005.02.001.

Authors

Clarisse Lejeune¹, Cristina Coelho, Laure Bonhomme-Coury, Thierry Azaïs, Jocelyne Maquet, Christian Bonhomme

Affiliation

¹ Laboratoire de Chimie de la Matière Condensée, Université P. et M. Curie (Paris VI), UMR 7574 Equipe Materiaux Sol-Gel et RMN 4, place Jussieu 75252 Paris Cedex 05, France.

PMID: 15799882
DOI: 10.1016/j.ssnmr.2005.02.001

Abstract

We show that it is possible to efficiently transfer magnetization from 31P to 29Si, using variable amplitude CP MAS experiment. This experiment is demonstrated by using Si5O(PO4)6, the synthesis protocol of which is described. From the obtained results, we show that the experiment allows the spectral edition of 29Si spectra from 31P-->29Si CP, enabling the studies of derivatives involving Si-O-P linkages, such as phosphosilicate glasses, microporous silicoaluminophosphates (SAPO) and bioactive phosphosilicates.