1981
DOI: 10.1063/1.442264
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Quadrupole effects in the magic-angle-spinning spectra of spin-1/2 nuclei

Abstract: Articles you may be interested inGeneral theoretical formalism for describing the high-order effects of the dipolar coupling between spin-1/2 and quadrupole nuclei Apparatus and method for sideband suppression by variable low speed magicanglespinning nuclear magnetic resonance experiments Rev. Sci. Instrum. 66, 3994 (1995); 10.1063/1.1146421Field dependence of the magic angle spinning nuclear magnetic resonance line shapes of paired spin1/2 nuclei in solids Magic-angle spinning fails to eliminate the effect of… Show more

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Cited by 159 publications
(57 citation statements)
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“…Under conditions where the quadrupolar interaction may be treated as a perturbation of the Zeeman interaction, the magnitude of the splitting observed in the MAS spectrum is directly proportional to e Z q e / h and R, but inversely proportional to the square of the strength of the applied field Bo. This phenomenon has been observed by numerous workers and is well understood (14)(15)(16)(17)(18)(19).…”
Section: Methodsmentioning
confidence: 61%
See 1 more Smart Citation
“…Under conditions where the quadrupolar interaction may be treated as a perturbation of the Zeeman interaction, the magnitude of the splitting observed in the MAS spectrum is directly proportional to e Z q e / h and R, but inversely proportional to the square of the strength of the applied field Bo. This phenomenon has been observed by numerous workers and is well understood (14)(15)(16)(17)(18)(19).…”
Section: Methodsmentioning
confidence: 61%
“…The observed 13C nrnr spectrum was an asymmetric doublet and was analyzed using known procedures (14)(15)(16)(17)(18)(19). The spinning sidebands observed in the I5N nrnr spectra of NH4NCS obtained with slow MAS were analyzed to obtain the I5N CSA using the '~u t h o r to whom all correspondence may be addressed.…”
Section: Introductionmentioning
confidence: 99%
“…It has long been known that, at low-to-moderate magnetic fields, the dipolar coupling of the 14 N with its quadrupole moment to neighboring 13 C atoms can be observed in the 13 C spectrum [34][35][36]. That this coupling to 14 N is not the source of non-monotonic behavior is shown in Figure 8, in which non-monotonic behavior is observed for the methylene resonance in 98% 15 N-labeled H-glycine.…”
Section: Resultsmentioning
confidence: 94%
“…This was easily confirmed by noting its faster dipole evolution in the delayed decoupling experiment (25). Assignment of the C1′ resonance was readily established by observation of its greater linewidth and occasionally resolved doublet splitting lineshape due to 14N quadrupolar effects (26)(27)(28). The C4′ signal is in general at considerably higher chemical shift than the 20 and 30 signals and can be assigned on that basis; however, without isotopic labeling, the latter two resonances cannot be separately assigned with any reliability using current methods.…”
Section: Nmr Spectral Interpretationmentioning
confidence: 85%