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Dynamic NMR of low-sensitivity fast-relaxing nuclei: 17O NMR and DFT study of acetoxysilanes

✍ Scribed by Luca Fusaro; Giulia Mameli; Francesca Mocci; Michel Luhmer; Giovanni Cerioni


Book ID
112146886
Publisher
John Wiley and Sons
Year
2012
Tongue
English
Weight
273 KB
Volume
50
Category
Article
ISSN
0749-1581

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πŸ“œ SIMILAR VOLUMES


17O relaxation time and NMR sensitivity
✍ Xiao-Hong Zhu; Hellmut Merkle; Jae-Hwan Kwag; Kamil Ugurbil; Wei Chen πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 English βš– 214 KB

## Abstract ^17^O spin relaxation times and sensitivity of detection were measured for natural abundance H~2~^17^O in the rat brain at 4.7 and 9.4 Tesla. The relaxation times were found to be magnetic field independent (__T__~2~ = 3.03 Β± 0.08 ms, __T__ = 1.79 Β± 0.04 ms, and __T__~1~ = 4.47 Β± 0.14 m

17O NMR study of local hole density and
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NMR has been carded out in YBa2Cu4Oa with T~= 74 K. The nuclear quadrupole tensors in the oxygen sites were determined and compared with those in other h, igh-T~ cuprates. The hole densities in the oxygen and copper sites have been extracted from v~(O) and vQ(Cu) by assuming that the electric field