Chemical-Shift-Chemical - Shift Correlation Spectroscopy in Powdered Solids

• Published in: Journal of magnetic resonance. Series A Vol. 102; no. 1; pp. 58 - 72
• Main Authors: Hughes, C.D., Sherwood, M.H., Alderman, D.W., Grant, D.M.
• Format: Journal Article
• Language: English
• Published: Orlando, FL Elsevier Inc 01.03.1993; Academic Press
• Subjects: Chemical and knight shifts; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Magnetic resonances and relaxations in condensed matter, mössbauer effect; Nuclear magnetic resonance and relaxation; Physics; Solid state; Chemical shift; Simulation; Fitting; Theoretical study; Experimental study; NMR spectrum; Powder; Pulse sequence
• DOI: 10.1006/jmra.1993.1068
• ISSN: 1064-1858

Sample reorientation during the mixing time of a two-dimensional NMR exchange experiment allows the measurement of chemical-shift tensors in powdered samples whose one-dimensional powder patterns are too complex to reliably analyze. This technique has the advantages that the chemical-shift anisotropy has an unscaled representation, the artifacts caused by cross polarization, spin relaxation, and partial sample orientation can be accounted for, the experiment is relatively easy to perform, and no spinning sidebands interfere. The method is useful for sorting out the principal values of overlapping chemical-shift tensors.