Solid-state NMR technique for measureing distances between hetero-nuclei in static powder samples is described. It is based on a two-dimensional single-echo scheme enhanced with adiabatic cross-polarization. As an example, the results for intra-molecular distances in α-crystalline form of glycine are presented. The measured NMR distances ^13 C(2) - ^15 N and ^13 C(1) - ^15 N are 1.496 ± 0.002 \AA and 2.50 ± 0.02 \AA, respectively.
@article{arxiv.cond-mat/0602439,
title = {Accurate measurement of ^{13}C - ^{15}N distances with solid-state NMR},
author = {Jae-Seung Lee and A. K. Khitrin},
journal= {arXiv preprint arXiv:cond-mat/0602439},
year = {2007}
}