Proton–nitrogen-14 overtone two-dimensional correlation NMR spectroscopy of solid-sample at very fast magic angle sample spinning
Y Nishiyama, M Malon, Z Gan, Y Endo… - Journal of Magnetic …, 2013 - Elsevier
1H–14N overtone (OT) heteronuclear multiple quantum coherence (HMQC) experiment at
very fast magic angle spinning (MAS) is reported. The 14N OT coherence is excited and
reconverted by 14N OT pulses at twice the 14N Larmor frequency. The OT coherence is free
from the first order quadrupolar broadening. MAS further removes the broadening due to
chemical shift anisotropy (CSA). With a small 0.75 mm MAS rotor and coil system, very fast
MAS up to 90kHz and very strong rf field are achieved, enhancing the sensitivity of indirect …
very fast magic angle spinning (MAS) is reported. The 14N OT coherence is excited and
reconverted by 14N OT pulses at twice the 14N Larmor frequency. The OT coherence is free
from the first order quadrupolar broadening. MAS further removes the broadening due to
chemical shift anisotropy (CSA). With a small 0.75 mm MAS rotor and coil system, very fast
MAS up to 90kHz and very strong rf field are achieved, enhancing the sensitivity of indirect …
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