A comparison between REDOR and theta-REDOR for measuring (13)C-(2)D dipolar interactions in solids.
(13)C-observe REDOR and theta-REDOR experiments for recovering the (13)C-(2)D dipolar interaction during MAS NMR are compared. It is found that limited (2)D RF power may severely compromise the performance of the REDOR experiment whereas the theta-REDOR experiment can be designed to work well. Results are presented for an isolated (13)C-(2)D spin pair with a large deuterium quadrupolar coupling constant and for a (13)C coupled to three methyl deuterons undergoing fast methyl group rotation.
Gullion
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Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, USA.
D002247:Carbon Isotopes; D003903:Deuterium; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*
D002247:Carbon Isotopes; D003903:Deuterium