High-resolution solid-state 23Na NMR of anhydrous sodium sulfite

✍ Scribed by William P. Power

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 405 KB
• Volume: 33
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1260330311

✦ Synopsis

Abstract

High‐speed magic angle spinning at high magnetic field was used to obtain high‐resolution solid‐state ^23^Na NMR spectra of anhydrous Na~2~SO~3~ (__P__3, Z = 2). Observation of the spinning sidebands of the ^23^Na satellite (± 3/2 ↔ ± 1/2) transitions allows the identification of the three crystallographic sites that could not be distinguished in the central transition region of the NMR spectrum. The ^23^Na sites in this salt were characterized by NMR for the first time and assigned to the crystallographic sites on the basis of a point‐charge model of the electric field gradient tensors at each site.