Reference for MQ-MAS signal enhancement with DFS




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DFS MQ-MAS references

Below are provided some NMR references about MQ-MAS with DFS 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.

  • J. Kanellopoulos, D. Freude, and A. Kentgens
    A practical comparison of MQMAS techniques,
    Solid State NMR 32, 99-108 (2008).
     
  • A. Goldbourt and P. K. Madhu
    Multiple-Quantum Magic Angle Spinning: High-resolution solid state NMR spectroscopy of half-integer quadrupolar nuclei, (1)(2)
    Monatsh. Chem. 133, 1497-1534 (2002).
     
  • H. Schäfer, D. Iuga, R. Verhagen, and A. P. M. Kentgens
    Population and coherence transfer in half-integer quadrupolar spin systems induced by simultaneous rapid passages of the satellite transitions: A static and spinning single crystal nuclear magnetic resonance study, (1)
    J. Chem. Phys. 114, 3073-3091 (2001).
     
  • A. Goldbourt, P. K. Madhu, S. Kababya, and S. Vega
    The influence of the radiofrequency excitation and conversion pulses on the lineshapes and intensities of the triple-quantum MAS NMR spectra of I = 3/2 nuclei, (1)
    Solid State NMR 18, 1-16 (2000).
     
  • D. Iuga, H. Schäfer, R. Verhagen, and A. P. M. Kentgens
    Population and coherence transfer induced by double frequency sweeps in half-integer quadrupolar spin systems,
    J. Magn. Reson. 147, 192-209 (2000).
     
  • A. P. M. Kentgens and R. Verhagen
    Advantages of double frequency sweeps in static, MAS and MQMAS NMR of spin I = 3/2 nuclei, (1)
    Chem. Phys. Lett. 300, 435-443 (1999).
     

Related bibliography

  • A. Brinkmann and A. P. M. Kentgens
    Sensitivity enhancement and heteronuclear distance measurements in biological 17O solid-state NMR,
    J. Phys. Chem. B 110, 16089-16101 (2006).
     
  • I. Hung and R. W. Schurko
    Solid-state 91Zr NMR of bis(cyclopentadienyl)dichloro zirconium(IV),
    J. Phys. Chem. B 108, 9060-9069 (2004).
     
  • R. W. Schurko, I. Hung, and C. M. Widdifield
    Signal enhancement in NMR spectra of half-integer quadrupolar nuclei via DFS-QCPMG and RAPT-QCPMG pulse sequences, (1)
    Chem. Phys. Lett. 379, 1-10 (2003).
     
  • D. Iuga and A. P. M. Kentgens
    Triple-quantum excitation enhancement in MQMAS experiments on spin I = 5/2 systems,
    Chem. Phys. Lett. 343, 556-562 (2001).
     
  • M. Nijman, M. Ernst, A. P. M. Kentgens, and B. H. Meier
    Rotational-resonance NMR experiments in half-integer quadrupolar spin systems,
    Molec. Phys. 98, 161-178 (2000).
     
  • E. Van Veenendaal, B. H. Meier, and A. P. M. Kentgens
    Frequency stepped adiabatic passage excitation of half-integer quadrupolar spin systems,
    Molec. Phys. 93, 195-213 (1998).
     
  • J. Haase and M. S. Conradi
    Sensitivity enhancement for NMR of the central transition of quadrupolar nuclei,
    Chem. Phys. Lett. 209, 287-291 (1993).
     
  • A. P. M. Kentgens
    Quantitative excitation of half-integer quadrupolar nuclei by a frequency-stepped adiabatic half-passage,
    J. Magn. Reson. 95, 619-625 (1991).
     
 

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Strontium-87
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Xenon-131
Zinc-67
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