17O NMR studies of sodalites

被引：28
|
作者：
Loeser, T
Freude, D
Mabande, GTP
Schwieger, W
机构：
[1] Univ Leipzig, Fak Phys & Geowissensch, D-04103 Leipzig, Germany
[2] Univ Erlangen Nurnberg, Inst Ind Chem 1, D-91052 Erlangen, Germany
来源：
CHEMICAL PHYSICS LETTERS | 2003年 / 370卷 / 1-2期
关键词：
D O I：
10.1016/S0009-2614(03)00066-6
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：
Hydrosodalites and hydroxosodalites were analysed by means of O-17, Si-29 and H-1 MAS NMR in the fields of 17.6 and 11.7 T. The samples covered a range in Si-O-Al bond angle of about 23degrees. Dependencies between the isotropic O-17 chemical shift 50 10) and the T-O-T bond angle a for the oxygen sites in socialites, A and LSX zeolites with Si/Al = 1 were investigated and found to be linear in some special cases. The adsorption of water and/or cation exchange with larger cations increases the 110 chemical shift. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码：32 / 38
页数：7
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