The structural dependence of geminal and vicinal CC coupling constants
โ Scribed by Jung-hyuck Cho; Martin Klessinger; Ute Tecklenborg; Konrad Wilhelm
- Book ID
- 102949991
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 532 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0749-1581
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โฆ Synopsis
Abstract
CC coupling constants of ten bicyclic hydrocarbons and ten cyclic ethers or carbonyl compounds were determined from the satellites of broad band decoupled spectra or from INADEQUATE measurements. The influences of valence angles, dihedral angles, hybridization and heterosubstitution on geminal and vicinal CC coupling constants are discussed in terms of the algebraic additivity of the contributions from individual coupling paths within the framework of a multiple path mechanism.
๐ SIMILAR VOLUMES
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
The dependence of three-bond "GUC couplings of cis-butane and cis-butene on the valence angle, the torsional angle of the methyl groups and methyl and methylene substituents is discussed on the basis of INDO-SCPT calculations. The results support the interpretation of the experimental couplings betw
## Abstract Twoโbond ^13^C๏ฃฟ^13^C coupling constants are discussed on the basis of INDOโSCPT calculations. The dependence of ^2^__J__(CC) on bond angle variation and on methyl substitution is evaluated, and it is shown that ^2^__J__(CC) depends linearly on the bond orbital __s__โcharacter product of
## Abstract Vicinal ^13^C, ^1^H coupling constants were used to establish the configuration of a 3,5โdisubstituted notricyclene. The assignment procedure is supported by independent measurements of ^13^C, ^2^H coupling constants in 3โ deuterionortricyclene and confirmed by ^1^H, ^1^H NOE data for _