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Strategies for High-Resolution Proton Spectroscopy in Solid-State NMR

  • Elena Vinogradov
  • P. K. MadhuEmail author
  • Shimon Vega
Chapter
Part of the Topics in Current Chemistry book series (TOPCURRCHEM, volume 246)

Abstract

We describe radiofrequency (RF) pulse schemes in solid-state NMR applied to samples rotating at the magic angle (MAS) to obtain high-resolution 1H spectra. Without combined RF schemes and MAS, 1H spectra are normally severely broadened by the strong homonuclear proton-proton dipolar couplings. This review gives an outline of a representative class of multiple-pulse sequences, designed to work with and without MAS, and commonly used for high-resolution proton spectroscopy in solid-state NMR. We give a theoretical treatment of these sequences based on Floquet theory, both single-mode and bimodal. Using this approach, we define first-order homonuclear decoupling efficiency parameters which provide the line-narrowing characteristics of the various pulse sequences when applied to fast rotating samples. These parameters are used to compare the line-narrowing efficiencies of the multiple-pulse schemes.

Solid-state NMR Proton spectra Multiple-pulse schemes PMLG and FSLG Bimodal Floquet theory 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  1. 1.Radiology DepartmentThe Beth Israel Deaconess Medical CenterBostonUSA
  2. 2.Department of Chemical SciencesTata Institute of Fundamental ResearchColabaIndia
  3. 3.Department of Chemical PhysicsWeizmann Institute of ScienceRehovotIsrael

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