Nuclear Magnetic Resonance Spectra from a Crystal rotated at High Speed

Solid state NMR studies of molecular recognition at protein–mineral interfaces

“…Magic Angle Spinning [30], MAS) coherently averages spatial parts in the spin interaction Hamiltonian that transform as second rank tensors. Since both the dipolar and the chemical shift Hamiltonians transform as second rank tensors in Cartesian space, MAS removes the effect of both interactions from solid-state NMR spectra.…”

Proton-detected scalar coupling based assignment strategies in MAS solid-state NMR spectroscopy applied to perdeuterated proteins

“…Experiments were performed in an out-and-back manner. 1 H decoupling was applied after refocusing the H,N antiphase coherence of the initial INEPT using the DIPSI-2 scheme. In the HNCO/HNCA experiment s and T were set to 2.3 and 12.0 ms, respectively.…”

“…The combination of magic angle spinning (MAS) solid-state NMR [1] and Cross Polarisation (CP) [2] paved the way for investigations of larger spin systems. Methodological and conceptual improvements, however, are still necessary for a straight forward and routine application of solid-state NMR to biological matter.…”

Scalar operators in solid-state NMR

“…Unfortunately, the numerical simulations have not yet been accomplished and are left for future work. [56,57,58], dynamic angle spinning (DAS) [78,76], double rotation (DOR) [72,104]' and multiple pulse (MP) [114]. The principle involved in these methods is the coherently motional averaging under which the orientation dependence of the resonance frequency can be completely or partially removed, and the NMR spectra contain only the isotr<;>pic chemical shifts.…”