References for composite-pulse nutation NMR




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Composite-pulse sequence with pulse lengths p1, p2, and p3 for nutation NMR

When we apply the one-pulse sequence to nuclei with low gyromagnetic ratio, spurious signals that distort the base line of the NMR spectrum are observed. The composite-pulse sequence, introduced by M. Mehring's group, cancels these spurious signals. There are three consecutive RF pulses in this sequence.


References containing data and graphs that can be simulated with the composite-pulse applets, in order to determine the quadrupole coupling from a featureless NMR lineshape, are provided:

  1. C. Mignon, Y. Millot, and P. P. Man
    Piezoelectric signal suppression by a composite-pulse sequence in NMR (PDF article, 191 Kb),
    C. R. Chimie 7, 425-430 (2004).
    ymillot@ccr.jussieu.fr
     
  2. Y. Millot, P. P. Man, M.-A. Springuel-Huet, and J. Fraissard
    Quantification of electric-field gradients in the supercage of HY, steam-dealuminated Y and lanthanum-exchanged Y zeolites by 129Xe and 131Xe NMR of physisorbed xenon gas (PDF article, 247 Kb),
    Proceedings: 14th International Zeolite Conference, Eds. E. van Steen et al., 1400-1405 (2004).
    ymillot@ccr.jussieu.fr
     
  3. Y. Millot, P. P. Man, M.-A. Springuel-Huet, and J. Fraissard
    Quantification of electric-field gradient in the supercage of Y zeolites with 131Xe (I = 3/2) NMR (PDF article, 133 Kb),
    C. R. Acad. Sci. Paris, Chimie 4, 815-818 (2001).
     
  4. Y. Millot and P. P. Man
    Determination of quadrupole parameters with a composite pulse for spurious signal suppression (PDF article, 127 Kb),
    J. Magn. Reson. 150, 10-16 (2001).
     
  5. Y. Millot, P. P. Man, M.-A. Springuel-Huet, and J. Fraissard
    Quantification of electric-field gradients in the supercage of Y zeolites by comparing the chemical shifts of 131Xe (I = 3/2) and 129Xe (I = 1/2) (PDF article, 80 Kb),
    Stud. Surf. Sci. Catal. 135, 2341-2345 (2001).
     
  6. P. P. Man
    Quadrupole couplings in nuclear magnetic resonance, general (PDF article, 720 Kb),
    in "Encyclopedia of analytical chemistry", edited by R. A. Meyers (J. Wiley, Chichester, 12224-12265, 2000).
     
  7. S. Zhang, X. Wu, and M. Mehring
    Elimination of the ringing effects in multiple-pulse sequences,
    Chem. Phys. Lett. 173, 481-484 (1990).

SIMPSON scripts and Mathematica-5 notebooks

Use Wolfram CDF Player to read Mathematica notebook in modern web browser.

  1. Effet of offset on 180(X) inversion pulse
     
  2. Effet of offset on 90(X)180(Y)90(X) inversion pulse and corresponding Mathematica 5 notebook
     
  3. Effet of offset on 90(X)240(Y)90(X) inversion pulse and corresponding MS Excel spreadsheet
     
  4. Effet of offset on 90(X)180(-X)270(X) inversion pulse:
    magnetization x component,
    magnetization y component,
    magnetization z component,
    corresponding Mathematica-5 notebook1 and notebook2
     
  5. Composite rotation matrices in Mathematica-5 notebook:
    passive rotation about rotated axes,
    active rotation about rotated axes.
     
 

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