High-Precision Measurement of Internuclear Distances using Solid-State NMR
نویسندگان
چکیده
Today, nuclear magnetic resonance (NMR) is among the most efficient tools in structural studies. Measurement of interatomic distances is the most common way of determining high-resolution structures of molecules using NMR techniques. In this article, we describe NMR techniques for static powder samples, based on a two-dimensional single-echo scheme, enhanced with adiabatic cross-polarization. They can significantly increase the accuracy of measuring internuclear distances and turn NMR into a high-precision crystallographic technique, complementing the X-ray, and neutron-scattering methods. Experimental examples are presented for intramolecular C N and C C distances in a-crystalline form of glycine. 2008 Wiley Periodicals, Inc. Concepts Magn Reson Part A 32A: 56–67, 2008.
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