Side-band analysis in variable-angle sample-spinning (VASS) NMR for the central transition of quadrupolar nuclei (half-integer spin)

✍ Scribed by J. P. Amoureux; C. Fernandez; F. Lefebvre

• Publisher: John Wiley and Sons
• Year: 1990
• Tongue: English
• Weight: 398 KB
• Volume: 28
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1260280103

✦ Synopsis

Abstract

Variable‐angle sample‐spinning (VASS) NMR was investigated for the case of limited rotation speed of the spinner. Side‐band intensities and line‐shapes for the central transition of half‐integer quadrupolar spin nuclei were calculated as a function of the parameter \documentclass{article}\pagestyle{empty}\begin{document}$ X = \frac{1}{4}[I(I + 1) - \frac{3}{4}]v_{\rm Q} ^2 (1 + \eta ^2 /3)/v_{\rm L} v_{\rm R}$\end{document}. It is shown that complex sideband patterns can be analysed using a very fast computational program.