Modulated-RF MQ-MAS references
Below are provided some NMR references about MQ-MAS with modulated
RF pulse sequence applied to half-integer quadrupole spins.
These references contain
(1) the pulse-sequence diagram,
(2) the coherence-transfer pathways,
(3) the phase-cycling,
(4) the receiver-phase relationship.
Fundamentals of MQMAS NMR on half-integer quadrupolar nuclei, (1)(2)
in Encyclopedia of Nuclear Magnetic Resonance, edited by D. M. Grant and R. K. Harris,
(J. Wiley, Chichester, Vol. 9, 262-274, 2002).
T. Vosegaard, P. Florian, P. J. Grandinetti, and D. Massiot
Pure absorption-mode spectra using a modulated RF mixing period in MQMAS experiments, (1)(2)
J. Magn. Reson. 143, 217-222 (2000).
T. Vosegaard, D. Massiot, and P. J. Grandinetti
Sensitivity enhancements in MQ-MAS NMR of spin-5/2 nuclei using modulated RF mixing pulses, (1)(2)(3)(4)
Chem. Phys. Lett. 326, 454-460 (2000).
A. Medek and L. Frydman
Multiple-Quantum Magic-Angle Spinning NMR: A new technique for probing quadrupolar nuclei in solids, (1)(2)
J. Braz. Chem. Soc. 10, 263-277 (1999).
S. E. Ashbrook and S. Wimperis
Novel two-dimensional NMR methods that combine single-quantum cross-polarization and MQ-MAS of quadrupolar nuclei,
Chem. Phys. Lett. 2001, 500-508 (2001).
S. Vega and Y. Naor
Triple quantum NMR on spin systems with I = 3/2 in solids,
J. Chem. Phys. 75, 75-86 (1981).