Heteronuclear X-Y double quantum MAS NMR in crystalline inorganic solids. Applications for indirect detection and spectral editing of rare-spin resonances.
Solid State Nucl Magn Reson
; 1(1): 33-40, 1992 Feb.
Article
en En
| MEDLINE
| ID: mdl-1365711
ABSTRACT
Heteronuclear double quantum MAS NMR experiments in the solid state, involving pairs of highly abundant 31P spins and the rare spins 113Cd, 77Se, and 29Si, are described for the three crystalline compounds CdSiP2, CdGeP2, and Ag7PSe6. These experiments offer the opportunity of indirectly detecting the rare-spin resonance via chemical shift evolution of heteronuclear double quantum coherence. For suitable cases, this method results in significantly enhanced detection sensitivities. Criteria for favorable indirect detection experiments are established. Besides offering high sensitivity, the pulse sequence also acts as a heteronuclear double quantum filter, hence providing heteronuclear correlation and useful spectral editing for peak assignments.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Espectroscopía de Resonancia Magnética
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Solid State Nucl Magn Reson
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
/
MEDICINA NUCLEAR
Año:
1992
Tipo del documento:
Article