Triple-quantum MAS-NMR of quadrupolar nuclei.
From two-dimensional multiquantum NMR spectra of quadrupolar nuclei, it is now possible to obtain much greater resolution than in a classical single-quantum magic-angle spinning or variable-angle spinning spectrum. We describe here a very simple pulse scheme which efficiently excites the desired multiquantum NMR coherence and a new acquisition procedure which yields to pure-absorption mode 2D spectra. Experimental spectra for 87Rb in polycrystalline rubidium nitrate illustrate the method.
Fernandez
C
C
Laboratoire de Dynamique et Structure, Des Matériaux Moléculaires, Villeneuve d'Ascq, France.
Amoureux
J P
JP
D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008432:Mathematical Computing; D011789:Quantum Theory