Accurate measurement of 13C-15N distances with solid-state NMR.
Solid-state NMR technique for measuring distances between heteronuclei 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 intramolecular distances in alpha-crystalline form of glycine are presented. The measured NMR distances (13)C(alpha)-(15)N and (13)C(')-(15)N are 1.496+/-0.002 and 2.50+/-0.02 A, respectively.
Lee
Jae-Seung
JS
Department of Chemistry, Kent State University, Kent, Ohio 44242-0001, USA.
Khitrin
A K
AK