Carbon-13 chemical shielding tensors in acetic acid
β Scribed by J. van Dongen Torman; W.S. Veeman; E. De Boer
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 384 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0301-0104
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## Abstract Carbonβ13 shielding tensor data for eight metal acetates, obtained by analysis of spinning sideband manifolds of slowspinning CP/MAS spectra, are presented and discussed.
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.
The orientations of the principal axes of the 13C chemical shielding tensor of the double-bonded C5 carbon nucleus in smgle crystals of 1,1,2,2-tetraacetylethane are essentially identical with those of an aromatIc carbon nucleus. That observation and the similarities between the tensors of the carbo