Studies of silicophosphate derivatives by 31P-->29Si CP MAS NMR.
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.
Lejeune
Clarisse
C
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.
Coelho
Cristina
C
Bonhomme-Coury
Laure
L
Azaïs
Thierry
T
Maquet
Jocelyne
J
Bonhomme
Christian
C