## Abstract Geminal ^15^N^13^C coupling constants have been measured in a series of ^15^N‐enriched 1‒phenyl‒3,5‒dialkyl‐substituted pyrazoles. The importance of the orientation of the nitrogen lone‐pair in determining the magnitude of ^2^__J__(^15^N^13^C) values is reflected in the enhanced coupli
The stereochemical dependence of31PNC13C coupling constants in acyclic aminophosphorus compounds
✍ Scribed by J. Burdon; J.C. Hotchkiss; W.B. Jennings
- Book ID
- 104238703
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- French
- Weight
- 185 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
## Abstract A series of alicyclic compounds with dihedral angles of 0°, 60°, 90°, 120° and 180° between a ^13^C‐labelled carbon atom and a carbon atom separated by three bonds from the label has been synthesized. The vicinal ^13^C^13^C spin coupling constants were measured, and from the results a K
## Abstract The smallest one‐bond carbon—carbon coupling constants of cyclopropane derivatives have been measured for [1‐^13^C]cyclopropane‐1,1‐dicarboxylic acid and cyclopropanecarboxylic acid. The ^13^C, ^13^C coupling constants of cyclopropylcarbinol have also been determined. The dependence of
## Abstract The one‐bond coupling constant ^1^__J__ ^13^CH for the halogenated carbon in α‐halogenocyclohexanones is more important when the CH bond is in the equatorial then in the axial position. When a conformational equilibrium is present, the resulting coupling is a linear function of the eq
## Abstract The magnitudes of ^13^C^14^N coupling constants have been measured in 12 rigid or anancomeric (biased) tetraalkylammonium iodides. The one‐bond coupling is typical for the degree of substitution of the carbon atom and the geminal coupling is very small. Vicinal couplings depend on the