Three- and four-dimensional NMR experiments for measurement of spin-spin coupling constants
✍ Scribed by Ole W Sørensen
- Publisher
- Elsevier Science
- Year
- 1990
- Weight
- 368 KB
- Volume
- 90
- Category
- Article
- ISSN
- 0022-2364
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In this work it was sought to explore the versatility of geminal spin-spin coupling constants, 2 J XY SSCCs, as probes for stereochemical studies. A set of compounds, where their experimental 2 J XY SSCCs through the X-C-Y molecular fragment are predicted to be sensitive to hyperconjugative interact
New two-and three-dimensional NMR methods are proposed for the measurement of 3 J(H, H) coupling constants between two adjacent methylene moieties. The new experiment, which is based on a combination of the E.COSY principle and double/zero quantum heteronuclear spectroscopy, has been applied to diac
## Abstract Fluorene‐9‐^13^C, fluorenone‐9‐^13^C, acenaphthenone‐11‐^13^C, acenaphthenone‐12‐^13^C, 1‐methylcyclopentanol‐1‐^13^C and 1‐methylcyclopentene‐1‐^13^C were synthesized to obtain __J__(CC) values between the natural carbons and the labeled carbons. Each of these compounds possessed at le