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Preface

1. Basic Theory
1.1 Interaction of Nuclei with External Magnetic Fields
1.2 Irreducible Tensor Operator Calculus
1.3 Rotating Frame
1.4 Free Induction Decay (FID) and Line Shape
1.5 Electric Quadrupole Interaction
1.6 Magnetic Dipolar Interaction between Nuclei
1.7 Anisotropy of the Chemical Shift
1.8 Knight Shift
1.9 References

2. Excitation of Quadrupolar Nuclei in Solids
2.1 Spectral Density of Rectangular Pulses
2.2 Resonance Offset
2.3 Nonselective Excitation
2.4 Selective Excitation of a Single Transition
2.5 Partly Selective Excitation of More Than One Transition
2.6 Nutation Techniques
2.7 Two-pulse Free Induction Decay
2.8 Cross Polarization
2.9 DNP for Signal Enhancement
2.10 Adiabatic Passage, Excitation by Modulated Pulsing, REDOR
2.11 Excitation for Very Broad Signals
2.12 References

3. Spin Echoes and Carr Purcell
3.1 Echo Studies
3.2 Hard and Nonselective Pulses without Dipole Interaction
3.3 Soft Pulses without Dipole Interaction
3.4 Dipole Interaction for First‐Order Quadrupole Echoes
3.5 Selective Excitation of a Single Transition without Dipole Interaction
3.6 Selective Excitation of the Central Transition with Dipole Interaction
3.7 Second‐order Quadrupole Effects on Hahn Echoes Under MAS Conditions
3.8 Intensity Measurements for Very Strong Quadrupole Coupling
3.9 Application of the Carr‐Purcell‐Meiboom‐Gill Pulse Sequence
3.10 References

4. Sample Rotation
4.1 Spinning Around One Fixed Axis
4.2 Dynamic Angle Spinning (DAS)
4.3 Double‐Rotation (DOR)
4.4 MAS Spectra of Spin‐1/2 Nuclei Coupled to Quadrupolar Nuclei
4.5 References

5. Multiple-Quantum Magic-Angle Spinning
5.1 How it Works
5.2 Shearing and Scaling
5.3 Split‐t1 and Full‐Echo Observation
5.4 Enhancement of Sensitivity by RIACT, FAM, DFS, CPMG, SPAM, WURST
5.5 Sensitivity and Resolution
5.6 Combinations of MQMAS with 1QCP, MQCP, HETCOR, TEDOR, REDOR, HMQMAS, RESPDOR
5.7 References

6. Satellite MAS NMR Spectroscopy
6.1 Satellite Spectrum
6.2 Experimental Implementation of STMAS
6.3 References

7. Spin-Lattice Relaxation
7.1 Basic Considerations of the Quadrupolar Spin-Lattice Relaxation
7.2 Spin-Phonon Coupling in Crystals
7.3 Spin Relaxation in Amorphous Materials
7.4 Activated Processes
7.5 References

8. Survey of NMR Parameters for Quadrupolar Nuclei in Powder Materials,
in Particular for 27Al, 23Na and 17O