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High-Resolution NMR Correlation Spectra of Disordered Solids

2003; American Chemical Society; Volume: 125; Issue: 14 Linguagem: Inglês

10.1021/ja0292389

1943-2984

Dimitris Sakellariou, Steven P. Brown, Anne Lesage, Sabine Hediger, Michel Bardet, Carlos A. Meriles, Alexander Pines, Lyndon Emsley,

Advanced MRI Techniques and Applications

We show how high-resolution NMR spectra can be obtained for solids for which the spectra are normally broadened due to structural disorder. The method relies on correlations in the chemical shifts between pairs of coupled spins. It is found experimentally that there are strong correlations in the chemical shifts between neighboring spins in both phosphorus-31 and carbon-13 spectra. These correlations can be exploited not only to provide resolution in two-dimensional spectra, but also to yield "chains" of correlated chemical shifts, constituting a valuable new source of structural information for disordered materials.