通过31P→29Si CP MAS NMR对硅磷酸盐衍生物的研究。

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

作者信息

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

机构信息

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.

出版信息

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

DOI:10.1016/j.ssnmr.2005.02.001

PMID:15799882

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.

摘要

我们表明，使用可变幅度交叉极化魔角旋转（CP MAS）实验能够有效地将磁化从31P转移到29Si。通过使用Si5O(PO4)6证明了该实验，文中描述了其合成方案。从获得的结果来看，我们表明该实验允许通过31P→29Si交叉极化对29Si光谱进行光谱编辑，从而能够研究涉及Si-O-P键的衍生物，如磷硅酸盐玻璃、微孔硅铝磷酸盐（SAPO）和生物活性磷硅酸盐。