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

Cavadini, SimoneAbraham, AnujiUlzega, SimoneBodenhausen, Geoffrey2009-12-222009-12-222009-12-22200810.1021/ja802603qhttps://infoscience.epfl.ch/handle/20.500.14299/44915WOS:000258415900010The 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 °C.Evidence for Dynamics on a 100 ns Time Scale from Single- and Double-Quantum Nitrogen-14 NMR in Solid Peptidestext::journal::journal article::research article