Proton MAS NMR Spectra at High Magnetic Fields and High Spinning Frequencies: Spectral Simulations Using Floquet Theory

Proton magic angle spinning (MAS) spectra of a model spin system, consisting of six protons, were calculated for different values of the external magnetic field and the spinning frequencies. Floquet theory was used to evaluate these spectra. The reduction of the effective homonuclear dipolar interac...

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Bibliographic Details
Published inJournal of magnetic resonance (1997) Vol. 135; no. 2; pp. 418 - 426
Main Authors Ray, Siddharth, Vinogradov, Elena, Boender, Gert-Jan, Vega, Shimon
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.12.1998
Subjects
Magnetic Resonance Spectroscopy
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Summary:Proton magic angle spinning (MAS) spectra of a model spin system, consisting of six protons, were calculated for different values of the external magnetic field and the spinning frequencies. Floquet theory was used to evaluate these spectra. The reduction of the effective homonuclear dipolar interaction for increasing spinning frequency was investigated. The influence of an increase of the external magnetic field and the spinning frequencies on the linewidths of the centerband spectra is discussed. This Floquet description of the rotating proton spin system will assist us in our calculations of the CPMAS spin dynamics of a low abundant spin interacting with a set of coupled protons.
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ISSN:1090-7807
1096-0856
DOI:10.1006/jmre.1998.9998