The determination of the average 27Al-31P distance in aluminophosphate molecular sieves with SEDOR NMR.
Solid State Nucl Magn Reson
; 1(1): 1-4, 1992 Feb.
Article
en En
| MEDLINE
| ID: mdl-1365708
ABSTRACT
The average 27Al-31P distances in an aluminophosphate, AlPO4-5, and in a silicoaluminophosphate, SAPO-11, were determined by using Spin Echo DOuble Resonance (SEDOR). A calculated SEDOR curve was fitted to the data in order to obtain the dipolar coupling constant. The tetrahedral surrounding of 27Al by four 31P atoms in the second coordination sphere was taken into account in the calculation of the theoretical SEDOR curve. The average 27Al-31P distances obtained by using this technique proved to be in good agreement with X-ray diffraction data.
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Base de datos:
MEDLINE
Asunto principal:
Fosfatos
/
Espectroscopía de Resonancia Magnética
/
Compuestos de Aluminio
Idioma:
En
Revista:
Solid State Nucl Magn Reson
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
/
MEDICINA NUCLEAR
Año:
1992
Tipo del documento:
Article