The 170, 15N and =C NMR chemical shifts have been determined for N,N-dimethylmethanesulphinamide (l), both as the neat liquid and in dimethyl sulphoxide, acetone, chloroform and various alcohols. The 0 and 15N nuclei of 1 resonate at a lower frequency than those of the corresponding sulphonamide, an
Magnetic resonance tensors in Uracil: Calculation of 13C, 15N, 17O NMR chemical shifts, 17O and 14N electric field gradients and measurement of 13C and 15N chemical shifts
β Scribed by Saeed K. Amini; Hoora Shaghaghi; Alex D. Bain; Ammar Chabok; Mohsen Tafazzoli
- Book ID
- 108275655
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 530 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0926-2040
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Isotopic substitution: in a molecule may be considered as a small perturbation of the molecular geometry. In N&IR terms, it may be thought of as a second perturbation operatins in parallcl with the first one, the ;nngnetic field. A double perlurbation theory put fonvard in thz present paper aims at