Encyclopedia of Magnetic Resonance 2010
DOI: 10.1002/9780470034590.emrstm0431.pub2
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Quadrupolar Nuclei in Solids

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Cited by 27 publications
(35 citation statements)
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“…Nuclear magnetic resonance (NMR) spectroscopy has long been heralded as a sensitive probe of the local environment in solids, able to provide detailed information on structure and disorder in the solid state, while its sensitivity to motion over a wide range of timescales also enables dynamics to be investigated. 1,2 The use of 1 H, 13 C, 29 Si and 31 P NMR spectroscopy has had a significant impact in the pharmaceutical industry, materials chemistry, geochemistry and industrial chemistry, for the study of drugs and active pharmaceuticals, catalysts, glasses, zeolites and minerals. [3][4][5][6][7][8][9][10] Unlike their solution-state counterparts, NMR spectra of solids are affected by anisotropic, or orientation-dependent interactions, including the chemical shift anisotropy (CSA) and the dipolar coupling, preventing the extraction of site-specific information.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Nuclear magnetic resonance (NMR) spectroscopy has long been heralded as a sensitive probe of the local environment in solids, able to provide detailed information on structure and disorder in the solid state, while its sensitivity to motion over a wide range of timescales also enables dynamics to be investigated. 1,2 The use of 1 H, 13 C, 29 Si and 31 P NMR spectroscopy has had a significant impact in the pharmaceutical industry, materials chemistry, geochemistry and industrial chemistry, for the study of drugs and active pharmaceuticals, catalysts, glasses, zeolites and minerals. [3][4][5][6][7][8][9][10] Unlike their solution-state counterparts, NMR spectra of solids are affected by anisotropic, or orientation-dependent interactions, including the chemical shift anisotropy (CSA) and the dipolar coupling, preventing the extraction of site-specific information.…”
Section: Introductionmentioning
confidence: 99%
“…The NMR spectra of quadrupolar nuclei, i.e., those with I > 1/2, are additionally affected by an interaction with the electric field gradient at the nucleus. 13,14 The anisotropic quadrupolar broadening can be significant, with lineshapes broadened over many MHz.…”
Section: Introductionmentioning
confidence: 99%
“…The dynamics of electron and nuclear spins is utilized in the wide area of magnetic resonance‐based techniques, including spectroscopy, imaging and microscopy, such as electron paramagnetic resonance (EPR), nuclear magnetic resonance (NMR), nuclear quadrupole resonance (NQR) spectroscopy, magnetic resonance imaging (MRI), and magnetic resonance force microscopy (MRFM) . However, the dynamics of the electron and nuclear spins is governed by their complex interactions with other spins and with their surroundings, including external magnetic fields, both static and oscillating.…”
Section: Introductionmentioning
confidence: 99%
“…The pure quadrupolar relaxation of half integer nuclei in and out of the motionally narrowed regime has been thoroughly discussed in the literature. [37][38][39][40][41][42][43][44][45][46][47][48][49][50] The exact relaxation theory of quadrupolar nuclei being beyond the scope of this article, we restrict to remind some salient points when calculating the relaxation times for 3/2 nuclei.…”
Section: Theoretical Background For Calculation Of Longitudinal Andmentioning
confidence: 99%
“…48 The T 2 relaxation also reveals two decay components out of extreme narrowing condition which are directly related to the central and satellite transitions 43,44 and with a passage through a minimum when s c~x0 À1 for the central transition component. 44,46 Importantly, for correlation times longer than 10 À9 s, very large line-widths of satellite transitions will push them beyond detectability, whereas the decay of the central transition coherence occurs on the time scale of the longitudinal magnetization. The plots in Figure 3 also reveal that for a given correlation time s c and for cross-links with different site symmetry or motional amplitude resulting in different residual quadrupolar coupling, higher quadrupolar couplings generate larger linewidths manifesting themselves by increasing losses of the height of relevant resonance signals from the central transition.…”
Section: Probing T 1 and T 2 Quadrupolar Relaxation Times Of Sulfurmentioning
confidence: 99%