Electron-decoupled MAS DNP with N@C 60 .

Nicholas AlanivaEdward P SalibaPatrick T JudgeErika L SestiWolfgang HarneitBjörn Corzilius Alexander B Barnes

Published in: Physical chemistry chemical physics : PCCP (2023)

Frequency-chirped microwaves decouple electron- and 13 C-spins in magic-angle spinning N@C 60 :C 60 powder, improving DNP-enhanced 13 C NMR signal intensity by 12% for 7 s polarization, and 5% for 30 s polarization. This electron decoupling demonstration is a step toward utilizing N@C 60 as a controllable electron-spin source for magic-angle spinning magnetic resonance experiments.

Keyphrases

magnetic resonance
solid state
high resolution
solar cells
electron microscopy
electron transfer
magnetic resonance imaging
computed tomography
mass spectrometry
room temperature