Heteronuclear dipolar recoupling in liquid crystals and solids by PISEMA-type pulse sequences
- Dvinskikh, Sergey V.
- Zimmermann, Herbert
- Maliniak, Arnold
- Sandström, Dick
DOIAbstract
A pulse sequence is described for the recoupling of heteronuclear dipolar interactions under MAS. The method is similar to the PISEMA experiment, but employs a well-defined amplitude modulation of one of the two radio-frequency fields. The technique is used for measurements of 1H–13C dipolar couplings in unoriented solid and liquid-crystalline samples
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