Triple-quantum MAS-NMR of quadrupolar nuclei

Christian Fernandez (1) , J.P. Amoureux (1)

1 LDSMM - Laboratoire de dynamique et structure des matériaux moléculaires

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.

Mots clés: Multiquantum NMR; Quadrupolar nuclei; Excitation schemes; Pure-absorption mode 2D; 87Rb NMR

Domaines: Catalyse; Matériaux

Christian Fernandez, J.P. Amoureux. Triple-quantum MAS-NMR of quadrupolar nuclei. Solid State Nuclear Magnetic Resonance, 1996, 5 (4), pp.315-321. ⟨10.1016/0926-2040(95)01197-8⟩. ⟨hal-02280881⟩