Accessibility of acidic protons in 12-phosphotungstic acid and its cesium hydrogen salt as revealed by solid state NMR spectroscopy

被引：0
|
作者：
Kang Haixia [1 ]
Yang Jun
机构：
[1] China Univ Geosci Beijing, Coll Energy, Beijing 100083, Peoples R China
[2] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2007年 / 28卷 / 02期
关键词：
12-phosphotungstic acid; accessibility of acidic protons; solid state NMR; probe molecule; trimethylphosphine; pseudoliquid phase;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The accessibility of acidic protons in 12-phosphotungstic acid and its cesium hydrogen salt has been studied by the probe molecule trimethylphosphine and solid state NMR. The experimental results indicate that 2/5 acidic protons in the anhydrous 12-phosphotungstic acid can be accessed by the probe molecules. However, only acidic protons on the surface of the cesium salt of 12-phosphotungstic acid can be accessed by the probe molecules trimethylphosphine.
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收藏
页码：103 / 105
页数：3
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