The determination of signs and magnitudes of 13C1H coupling constants in some monosubstituted allenes
✍ Scribed by N.J Koole; M.J.A de Bie
- Publisher
- Elsevier Science
- Year
- 1976
- Weight
- 716 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0022-2364
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📜 SIMILAR VOLUMES
Conformational analysis of carbohydrates has depended, in large part, on the use of three-bond (vicinal) IH\_1H spin-coupling constants (31HH)' whose magnitudes can be correlated with molecular torsion angles, as first enunciated by Karplus [1]. In the ensuing years, more sophisticated Karplus relat
An empirical projection method is described to predict the magnitudes and signs of two-bond 13C-13C spin-coupling constants (2Jcc) in aldopyranosyl rings. The method has been applied primarily to the interpretation of 2Jcc c values, although the behavior of 2Jco c has also been examined in light of
## Abstract Magnitudes and signs of ^13^C^13^C coupling constants in compounds of the type Ph^13^CR^1^R^2^^13^CR^1^R^2^Ph have been determined and the results are discussed in a broader context. Two types of coupling constants, __J__(C‐i, C‐α) and __J__(C‐i, C‐β), between aromatic carbon atoms an