Simone Cavadini

Indirect detection of nitrogen-14 in solid-state NMR spectroscopy

Keywords: Magic-angle-spinning (MAS) ; N-14 NMR spectroscopy ; Quadrupolar tensors ; Residual dipolar splittings ; Average Hamiltonian theory ; Dynamics in solids ; Nuclear-Magnetic-Resonance ; Angle-Spinning Nmr ; Multiple-Quantum Nmr ; Protein-Structure Determination ; Residual Dipolar Couplings ; Average Hamiltonian Theory ; Chemical-Shift Anisotropy ; High-Resolution H-1-Nmr ; Magic-Angle ; Mas Nmr Reference EPFL-ARTICLE-147594doi:10.1016/j.pnmrs.2009.08.001View record in Web of Science Record created on 2010-03-23, modified on 2017-05-12

Evidence for Dynamics on a 100 ns Time Scale from Single-and Double-Quantum Nitrogen-14 NMR in Solid Peptides

The indirect detection of 14N spectra via protons in the manner of heteronuclear multiple-quantum correlation (HMQC) allows one to obtain single- (SQ) and double-quantum (DQ) 14N spectra in solids. A comparison of the SQ and DQ line widths as a function of temperature with simulations reveals motions in the tripeptide AAG with rates on the order of 107 s(-1) at 49 degrees C.