✍ Scribed by René Verel; Matthias Ernst; Beat H. Meier
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
A series of uni-and multidimensional variants of the dipolar exchange-assisted recoupling (DEAR) NMR experiment is described and applied to determinations of 13 C-14 N dipolar local field spectra in amino acids and dipeptides. The DEAR protocol recouples nearby nuclei by relying on differences in th
The recoupling of ~3C-IH dipolar interactions by applying ~3C pulses under a ~H decoupling rf field is discussed. It is theoretically and experimentally shown that ]3C spectral line-broadening due to such recoupling in a ]3C "n-pulse train can be minimized by setting the rf field intensity for ~H de
Practical heteronuclear dipolar recoupling performances under magic angle spinning for SFAM and REDOR have been investigated under well-defined rf inhomogeneity environments with variation of resonance offsets for the irradiated nucleus. The heteronuclear dipolar recoupling efficiencies were quantit
A new radiofrequency pulse sequence is introduced for the efficient reintroduction of magnetic dipolar couplings in the magic-angle-spinning NMR of solids. The sequence involves seven phase-shifted radiofrequency pulse cycles, timed to span two rotational periods of the sample. Double-quantum cohere