Carbon-13 NMR studies of chemical-shielding tensors and molecular motion in Meldrum's acid in the solid state
โ Scribed by Takegoshi, K.; McDowell, C. A.
- Book ID
- 127186086
- Publisher
- American Chemical Society
- Year
- 1986
- Tongue
- English
- Weight
- 765 KB
- Volume
- 108
- Category
- Article
- ISSN
- 0002-7863
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๐ SIMILAR VOLUMES
The principal elements of 13C chemical shift tensors in some dicarboxylic acids were determined from powder samples by two methods: (i) from the theoretical fit of the experimental data and (ii) from the sideband intensities of the CP-MAS spectra using the graphical procedure of Herzfeld and Berger.
## Abstract We have presented a systematic experimental investigation of carboxyl oxygen electricโfieldโgradient (EFG) and chemical shielding (CS) tensors in crystalline amino acids. Three ^17^Oโenriched amino acids were prepared: Lโaspartic acid, Lโthreonine, and Lโtyrosine. Analysis of twoโdimens