New solid state-NMR techniques for investigating structure and dynamics in soft solids and biomaterials

摘要

The potential of high-resolution solid-state NMR to address the problem of establishing quantitative relationships between macroscopic properties of soft solids and biomaterials and their structure and dynamics at the molecular level is investigated. An analysis of advanced proton recoupling pulse sequences to provide unique insights into the structure and dynamics of such materials at molecular level is given. In particular, the excitation of multiple-quantum coherences under rotational resonance conditions is analyzed with respect to quantifying the cross-peak intensities measured from the corresponding 2D H-1-H-1 correlation spectra in terms of the characteristic order parameter, which provides structural and dynamical information for the investigated materials.