Multiple-quantum MAS NMR of quadrupolar nuclei. Do five-, seven- and nine-quantum experiments yield higher resolution than the three-quantum experiment?

@article{Pike2000MultiplequantumMN,
  title={Multiple-quantum MAS NMR of quadrupolar nuclei. Do five-, seven- and nine-quantum experiments yield higher resolution than the three-quantum experiment?},
  author={Kevin Pike and Ranjan Malde and Sharon E. Ashbrook and John McManus and Stephen Wimperis},
  journal={Solid state nuclear magnetic resonance},
  year={2000},
  volume={16 3},
  pages={
          203-15
        }
}
The question of whether or not higher-order (five-, seven- and nine-quantum) multiple-quantum magic angle spinning (MQMAS) experiments yield isotropic NMR spectra of half-integer quadrupolar nuclei with higher resolution than the basic three-quantum MAS experiment is examined. The frequency dispersion is shown theoretically to be greatly increased in higher-order MQMAS spectra, but it is argued that whether or not this translates into an increase in resolution depends upon the ratio of the… CONTINUE READING
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