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A Comparison between REDOR and θ-REDOR for Measuring 13C–2D Dipolar Interactions in Solids

✍ Scribed by Terry Gullion

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 88 KB
Volume: 139
Category: Article
ISSN: 1090-7807
DOI: 10.1006/jmre.1999.1806

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✦ Synopsis

(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.

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✍ Leo van Wüllen; Martin Kalwei 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 132 KB

We report (13)C-(27)Al double resonance experiments (REDOR and TRAPDOR) on several aluminum organic compounds with the aim of detecting (13)C-(27)Al dipolar couplings and distances in solids. The (13)C and (27)Al pulses are applied to the same probe channel because their resonance frequencies are in