Nitrogen-14 NMR Studies of Biological Systems
eMagRes, ISSN: 2055-6101, Vol: 2011
2011
- 1Citations
- 6Captures
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Book Chapter Description
In spite of its significant isotopic abundance and the importance of nitrogen as an element, nitrogen-14 has often been viewed as a rather unfavorable nucleus for NMR spectroscopy. In recent years, however, experimental difficulties in observing high-resolution 14N magic angle spinning (MAS) NMR spectra of powdered materials have been overcome by the use of indirect methods of detection. Hence, HMQC-like indirect detection of the nitrogen-14 nuclei via “spy” S = ½ nuclei, such as 1H or 13C, can yield highly resolved 14N NMR spectra under MAS conditions. This review focuses on the description of the HMQC, HSQC-like experiments for 14N indirect detection of spinning solids, and shows how crucial information about the structure and dynamic properties of nitrogen-containing solids can be obtained. Moreover, the review briefly discusses S = ½ NMR spectra of compounds that exhibit dipolar-quadrupolar interaction effects and TRAPDOR experiments that exploit these. Much study remains to be done to apply these indirect detection methods to biomolecules such as proteins or nucleic acids.
Bibliographic Details
Wiley
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