## Abstract The values and signs of ^13^C, ^1^H spin‐spin coupling constants in 1,6,6aλ^4^‐trithiapentalene and 1,6‐dioxa‐6aλ^4^‐thiapentalene have been re‐investigated. The contributions from second order effects in the spectra have been included in an iterative spectral analysis. The values found
The rα stucture of 1,6,6aλ4 trithiapentalene and 1,6-dioxa-6aλ4-thiapentalene. A 1H-NMR study in the nematic phase including 13C- satellites in natural abundance
✍ Scribed by Thomas Bjorholm; J.P. Jacobsen; Carl Th. Pedersen
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 484 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0022-2860
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The carbon signals of the 2‐acylamino‐4__H__‐1,3,4‐thiadiazino[5,6‐__b__]quinoxalines 1a,b, 2‐acylamino‐4__H__‐1,3,4‐thiadiazino[5,6‐__b__]quinoxaline 1,1‐dioxides 2a,b, and 2‐amino‐4__H__‐1,3,4‐thiadiazino[5,6‐__b__]quinoxaline 3 in deuteriodimethyl sulfoxide and in deuteriotrifluoroac
The NOESY spectrum and vicinal coupling constants of t(4)-acetoxy-3,3-dimethyl-r(2),c(6)-diphenyl-Nacetylpiperidine suggest that the compound adopts a chair conformation with axial phenyl groups. The vicinal coupling constants of t(4)-acetoxy-r(2),c(6)-diphenyl-N-acetylpiperidine could be accounted
X-ray crystallographic analyses are reported for the two title compounds (8 and 9), of which the former crystallized in two modifications (8n and 8b). In all three structures, the pyranose rings have the %, (D) conformation and the substituents at C-l are axial and those at C-24-4 are equatorial. Th