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PubMed · 11531359

A novel dipolar dephasing method for the slow magic angle turning experiment.

J Z Hu·C M Taylor·R J Pugmire·D M Grant
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Abstract

Complete suppression of the resonances from protonated carbons in a slow magic angle spinning experiment can be achieved using five dipolar dephasing (Five-DD) periods distributed in one rotor period. This produces a spectrum containing only the spinning sidebands (SSB) from the nonprotonated carbons. It is shown that the SSB patterns corresponding to the nonprotonated carbons are not distorted over a wide range of dipolar dephasing times. Hence, this method can be used to obtain reliable principal values of the chemical shift tensors for each nonprotonated carbon. The Five-DD method can be readily incorporated into isotropic-anisotropic 2D experiments such as FIREMAT and 2D-PASS to facilitate the measurement of the (13)C chemical shift tensors in complex systems.

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Carbon IsotopesMagnetic Resonance ImagingPhysical PhenomenaPhysicsRotationJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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J Z Hu, C M Taylor, R J Pugmire, D M Grant. 2001. A novel dipolar dephasing method for the slow magic angle turning experiment.. https://doi.org/10.1006/jmre.2001.2380

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