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13C NMR STUDIES OF COALS AND OIL SHALES

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The standard C-13 NMR techniques, including pulse Fourier transform (FT) approaches have not been generally useful for solid sample because of 1) the excessive line broadening due to dipole-dipole interactions between C-13 and H magnetic dipoles, 2) chemical shift anisotropies, and 3) long C-13 spin-lattice relaxation times. All of these problems are eliminated in liquids by the normal tumbling motions occurring randomly in the liquid state.

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Last Updated September 29, 2016, 18:51 (EDT)
Created September 29, 2016, 18:51 (EDT)
Citation Victor J. Bartuska, Gary E. Maciel, Francis P. Miknis
Netl Product yes
Poc Email Roy.long@netl.doe.gov
Point Of Contact Roy Long
Program Or Project KMD
Publication Date 1978-1-1