Finite rf pulse excitation in MAS NMR of quadrupolar nuclei. Quantitative aspects and multiple-quantum excitation

The Influence of the Radiofrequency Exci

The Influence of the Radiofrequency Excitation and Conversion Pulses on the Lineshapes and Intensities of the Triple-Quantum MAS NMR Spectra of I = 3/2 Nuclei

✍ Amir Goldbourt; Shifi Kababya; Shimon Vega; P.K. Madhu 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 157 KB

A rigorous examination of the various multiple-quantum magic angle spinning sequences is carried out with reference to sensitivity enhancement in the isotropic dimension and the lineshapes of the corresponding MAS peaks in the anisotropic dimension. An echo efficiency parameter is defined here, whic