Non empirical quantum mechanical calculations of the1H,13C,15N and17O magnetic shielding constants and of the spin-spin coupling constants in formamide, hydrated formamide and N-methylformamide
✍ Scribed by Fernando Ribas Prado; Claude Giessner-Prettre; Alberte Pullman; James F. Hinton; Dennis Harpool; Ken R. Metz
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 849 KB
- Volume
- 59
- Category
- Article
- ISSN
- 1432-2234
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## Abstract In the ^1^H and ^13^C NMR spectra of 1‐(2‐selenophenyl)‐1‐alkanone oximes, the ^1^H, the ^13^C‐3 and ^13^C‐5 signals of the selenophene ring are shifted by 0.1–0.4, 2.5–3.0 and 5.5–6.0 ppm, respectively, to higher frequencies, whereas those of the ^13^C‐1, ^13^C‐2 and ^13^C‐4 carbons ar
In the ^1^H and ^13^C NMR spectra of selenophene‐2‐carbaldehyde azine, the ^1^H‐5, ^13^C‐3 and ^13^C‐5 signals of the selenophene ring are shifted to higher frequencies, whereas those of the ^1^H‐1, ^13^C‐1, ^13^C‐2 and ^13^C‐4 are shifted to lower frequencies on going from the __EE__ to __ZZ__ isom