Cover Feature: Sensitivity Enhancement of Ultra‐Wideline NMR by Progressive Saturation of the Proton Reservoir Under Magic‐Angle Spinning (ChemPhysChem 19/2024)

The Cover Feature illustrates a very broad 14N NMR spectrum, typically challenging to acquire due to its low sensitivity and breadth, yet now addressable via the new PROgressive Saturation of the PRoton reservoir Under Spinning (PROSPRUS) NMR experiment. PROSPRUS boosts the signatures of insensitive nuclei possessing broad solid-state NMR spectra under magic-angle spinning, by indirectly detecting their effects via a magnified depolarization of protons throughout the powdered sample. More information can be found in the Research Article by L. Frydman and co-workers (DOI: 10.1002/cphc.202400613).