Pushing the limits of NMR crystallography: a study on three forms of glycylglycine.
NMR crystallography (NMRX), which integrates solid-state NMR (SSNMR) spectroscopy, X-ray diffraction (XRD), and density functional theory (DFT) calculations, provides deeper insight into crystal structures than any of these methods individually. With the goal of pushing the limits of NMRX, we have characterized three s...