Spin-locking-MAS

Some NMR references about spin-locking pulse sequences applied to half-integer quadrupole spins:

1. Sharon E. Ashbrook and Stephen Wimperis
   Spin-locking of half-integer quadrupolar nuclei in nuclear magnetic resonance of solids: Second-order quadrupolar and resonance offset effects,
   J. Chem. Phys. 131, 194509/1-194509/15 (2009).
   Abstract
2. G. Mali
   Spin-locking and recoupling of homonuclear dipolar interaction between spin-3/2 nuclei under magic-angle sample spinning,
   J. Magn. Reson. 185, 318-325 (2007).
3. S. P. Puls and H. Eckert
   Site discrimination in mixed-alkali glasses studied by cross-polarization NMR,
   J. Phys. Chem. B 110, 14253-14261 (2006).
4. S. E. Ashbrook and S. Wimperis
   Spin-locking of half-integer quadrupolar nuclei in nuclear magnetic resonance of solids: Creation and evolution of coherences,
   J. Chem. Phys. 120, 2719-2731 (2004).
5. S. Wi, J. W. Logan, D. Sakellariou, J. D. Walls, and A. Pines
   Rotary resonance recoupling for half-integer quadrupolar nuclei in solid-state nuclear magnetic resonance spectroscopy,
   J. Chem. Phys. 117, 7024-7033 (2002).
6. M. Baldus, D. Rovnyak, and R. G. Griffin
   Radio-frequency-mediated dipolar recoupling among half-integer quadrupolar spins,
   J. Chem. Phys. 112, 5902-5909 (2000).
7. Y. Zhang, F. Deng, J. Qiu, and C. Ye
   Spin-locking mechanism of spin I = 3/2 quadrupolar nuclei undergo magic angle spinning,
   Solid State Nucl. Magn. Reson. 15, 209-216 (2000).
8. Gunnar Jeschke
   Spin locking of I = 3/2 nuclei in static and spinning samples: A description by abstract spins and Floquet formalism,
   J. Chem. Phys. 108, 907-917 (1998).
9. L. van Wüllen, L. Züchner, W. Müller-Warmuth, and H. Eckert
   ¹¹B{²⁷Al} and ²⁷Al{¹¹B} double resonance experiments on a glassy sodium aluminoborate,
   Solid State Nucl. Magn. Reson. 6, 203-212 (1996).
10. W. Sun, J. T. Stephen, L. D. Potter, and Y. Wu
    Rotation-induced resonance and second-order quadrupolar effects on spin locking of half-integer quadrupolar nuclei,
    J. Magn. Reson. A 116, 181-188 (1995).
11. S. Ding and C. A. McDowell
    Spin-locking spectral lineshapes of the central transition of half-integer quadrupole systems under MAS,
    J. Mol. Struct. 355, 135-142 (1995).
12. S. Hayashi
    MAS NMR of half-integer quadrupole nuclei: effect of spin-locking efficiency on powder lineshapes,
    Solid State Nucl. Magn. Reson. 3, 93-101 (1994).
13. A. J. Vega
    MAS NMR spin locking of half-integer quadrupolar nuclei,
    J. Magn. Reson. 96, 50-68 (1992).

Related bibliography

1. K. Gopalakrishnan and G. Bodenhausen
   Cross polarization from spins I = 1/2 to spins S = 1 in nuclear magnetic resonance with magic angle sample spinning,
   J. Chem. Phys. 124, 194311/1-194311/14 (2006).
2. C. P. Grey, W. S. Veeman, and A. J. Vega
   Rotational echo ¹⁴N/¹³C/¹H triple resonance solid-state nuclear magnetic resonance: a probe of ¹³C-¹⁴N internuclear distances,
   J. Chem. Phys. 98, 7711-7724 (1993).