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01637 am a22002533u 4500 |
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82061 |
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|a Caporini, Marc A.
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|a Massachusetts Institute of Technology. Department of Chemistry
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|a Caporini, Marc A.
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|a Griffin, Robert Guy
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|a Turner, Christopher John
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|a Bielecki, Anthony
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|a Turner, Christopher John
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|a Bielecki, Anthony
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|a Griffin, Robert Guy
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|a Chemical shift anisotropy selective inversion
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|b Elsevier B.V.,
|c 2013-11-08T19:38:24Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/82061
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|a Magic angle spinning (MAS) is used in solid-state NMR to remove the broadening effects of the chemical shift anisotropy (CSA). In this work we investigate a technique that can reintroduce the CSA in order to selectively invert transverse magnetization. The technique involves an amplitude sweep of the radio frequency field through a multiple of the spinning frequency. The selectivity of this inversion mechanism is determined by the size of the CSA. We develop a theoretical framework to describe this process and demonstrate the CSA selective inversion with numerical simulations and experimental data. We combine this approach with cross-polarization (CP) for potential applications in multi-dimensional MAS NMR.
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|a National Institute of Biomedical Imaging and Bioengineering (U.S.) (Grant EB-003151)
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|a en_US
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|a Article
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|t Journal of Magnetic Resonance
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