Long-range proton-carbon-13 NMR spin coupling constants
✍ Scribed by Bax, Ad; Freeman, Ray
- Book ID
- 125959428
- Publisher
- American Chemical Society
- Year
- 1982
- Tongue
- English
- Weight
- 263 KB
- Volume
- 104
- Category
- Article
- ISSN
- 0002-7863
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📜 SIMILAR VOLUMES
## Abstract Carbon‐13 NMR spectra of pyridine have been observed by using the slow scan technique in the absorption mode. The long range coupling constants between carbon‐13 and protons have been obtained and assigned by the isotope substitution method.
## Abstract The application of selective population inversion (SPI) to the assignment of ^13^C resonances and to the determination of the relative sign of ^13^C^1^H coupling constants is demonstrated for 1‐phenyl‐1,2‐dibromo‐2‐nitroethane. A negative sign for the geminal C‐2H‐1 coupling constant
## Abstract Long‐range proton‐carbon coupling constants, __^n^J__~CH~, were measured for some simple norbornene derivatives. Among the influence of substitution pattern, a study of the experimental influence of the double bond in the norbornene skeleton on ^2^__J__~CH~ and ^3^__J__~CH~ was made, ta