A NOVEL APPLICATION OF NUCLEAR SPIN-ECHO DOUBLE-RESONANCE TO ALUMINOPHOSPHATES AND ALUMINOSILICATES

被引：148
|
作者：
VANECK, ERH
JANSSEN, R
MAAS, WEJR
VEEMAN, WS
机构：
[1] Department of Molecular Spectroscopy, Faculty of Science, University of Nijmegen, 6525 ED Nijmegen, Toernooiveld
来源：
CHEMICAL PHYSICS LETTERS | 1990年 / 174卷 / 05期
关键词：
D O I：
10.1016/S0009-2614(90)87174-P
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：
It is shown that by applying a spin-echo double-resonance technique to 31P and 27Al in AlPO4-5, one can detect that 31P is coupled to 27Al. Although the pulse sequence used resembles that of the SEDOR experiment, it actually differs and also the mechanism of the phenomena we observe seems to differ from the mechanism of the original SEDOR experiment. The experiment described in this paper is also tried on 29Si and 27Al in the zeolites NaA and NaY. For NaA, there is a small but definite effect of aluminum irradiation on the 29Si spin-echo intensity. For NaY, the signal-to-noise ratio is too small to observe an effect. © 1990.
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页码：428 / 432
页数：5
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