Solid-state NMR characterization of oxygen sites in organically modified aluminosilicate xerogels

被引：7
作者：
Lafuma, A
Fayon, F
Massiot, D
Chodorowski-Kimmès, S
Sanchez, C
机构：
[1] Ctr Rech Mat Haute Temp, F-45071 Orleans 2, France
[2] Univ Paris 06, Lab Chim Mat Condensee, CNRS, UMR 7574, F-75005 Paris, France
[3] LOreal Rech, Aulnay Sous Bois, France
来源：
MAGNETIC RESONANCE IN CHEMISTRY | 2003年 / 41卷 / 11期
关键词：
NMR; O-17; solid state; magic angle spinning; triple quantum magic angle spinning; modelling; aluminosilicate; hybrid xerogels;
D O I：
10.1002/mrc.1282
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Solid-state NMR characterization of hybrid aluminosilicate xerogels, by O-17 magic angle spinning (MAS) and triple quantum magic angle spinning (MQMAS) techniques, evidences Si-O-Si and Si-O-Al oxygen sites, spectrally separated in MQMAS experiments. Inversion of the MQMAS spectra allows the measurement of quadrupolar parameters, isotropic chemical shifts, distribution of chemical shift and discussion of the mobility of the structural units. Copyright (C) 2003 John Wiley Sons, Ltd.
引用
收藏
页码：944 / 948
页数：5
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