Enhanced sensitivity in RIACT/MQ-MAS NMR experiments using rotor assisted population transfer

The rotor assisted population transfer (RAPT) sequence is used to enhance the sensitivity of the RIACT(II) experiment for spin-3/2 quadrupolar nuclei. A detailed theoretical analysis of the polarizations that contribute to different types of MQ-MAS experiments is provided. In particular, two polarization pathways are distinguished for the creation of triple-quantum coherence. The existence of these pathways is experimentally demonstrated by comparing the sensitivities of different sequences with and without RAPT preparation. (C) 2001 Academic Press.


Published in:
Journal of Magnetic Resonance, 150, 1, 71-80
Year:
2001
Publisher:
ACADEMIC PRESS INC
ISSN:
1090-7807
Keywords:
Laboratories:




 Record created 2015-01-08, last modified 2018-12-03


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