27Al → 31P 3QMAS/HETCOR experiment in aluminophosphate molecular sieves

被引：11
|
作者：
Mali, G [1 ]
Amoureux, JP
Kaucic, E
机构：
[1] Natl Inst Chem, Ljubljana, Slovenia
[2] Univ Sci & Tech Lille Flandres Artois, Lille, France
[3] Univ Ljubljana, Ljubljana, Slovenia
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2000年 / 2卷 / 24期
关键词：
D O I：
10.1039/b006381i
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A 3QMAS/HETCOR experiment between spin-5/2 nuclei (Al-27) and spin-1/2 nuclei (P-31) has been applied to aluminophosphate molecular sieves. It was shown that a reasonable sensitivity of the experiment can be achieved even on a narrow-bore NMR spectrometer that allows only low radiofrequency fields, if the conversion from the aluminium triple quantum into single quantum level and cross-polarization from aluminium to phosphorus nuclei are carefully optimized. The application of ANAFOR processing to the 3QMAS/HETCOR data was also demonstrated and it was shown that in this way the required experimental time can be reduced, approximately, by a factor of ten.
引用
收藏
页码：5737 / 5742
页数：6
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