Fast Wide-Line Solid-State NMR on a Low-Cost Benchtop Spectrometer

Autor: Thomas Vosegaard, Ole Mejlhede Jensen, M.K. Sørensen, Nicholas M. Balsgart, Niels Chr. Nielsen
Rok vydání: 2018
Předmět:
Zdroj: Sørensen, M K, M. Balsgart, N, Jensen, O, Nielsen, N C & Vosegaard, T 2018, ' Fast Wide-Line Solid-State NMR on a Low-Cost Benchtop Spectrometer ', ChemPhysChem, vol. 19, no. 22, pp. 2985-2988 . https://doi.org/10.1002/cphc.201800711
ISSN: 1439-7641
Popis: Solid-state NMR may provide access to a wealth of information on molecular structure and dynamics. However, for many applications, the acquisition is challenged by broad resonances implying large spectral linewidths and low sensitivity. Conventionally, this is tackled by using costly and laboratory-fixed spectrometers based on large high-field superconducting magnets. In this Communication, we demonstrate that a range of challenging wide-line solid-state NMR spectra can be acquired on a robust, maintenance-free, low-cost benchtop/mobile NMR spectrometer with a sensitivity comparable to common high-field instruments. The performance and versatility for recording sensitive wide-line spectra is demonstrated through acquisition of 31 P NMR of paramagnetic FePO4 and full quadupolar lineshapes of Al2 O3 (27 Al) and KNO3 (14 N). Also, we introduce interleaved acquisition of frequency-stepped slices providing a dramatic reduction of the required experiment time.
Databáze: OpenAIRE