The crystal and molecular structures of a pair of diastereomeric 2-diphenylthiophosphinoylcis-(4,6-dimethyl)-1,3-dithianes 2 have been determined by the X-ray method. The differences in corresponding bond distances in cis-2 and trans-2 are discussed in context of the anomeric effect operating in thi
Molecular structure of r-2-(p-bromophenyl)-cis-4,cis-6-dimethyl-1,3-dioxane
β Scribed by F.W. Nader
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 230 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
In an earlier communication' the problem concerning conformational equilibria of P-substituted 1,3-dioxanes have been discussed and the orystal and molecular structure of the equatorially aryl-substituted 1,3-dioxane (l), studied in this context, was reported. The X-ray analysis of an axially arylsu
## Abstract The ^1^H NMR spectra of isomeric 5,6βdimethylβ2βoxoβ1,4βdioxans have been recorded and the pertinent chemical shifts and coupling constants determined. The parameters indicate that both isomers exist as an equilibrium mixture of interconverting half chair ring conformations.
## Abstract Models for the crystal structure of __cis__β1,4βpoly(2,3βdimethylβ1,3βbutadiene) are elucidated by the joint use of molecular mechanics and WAXS. The chain conformation can be predicted by using different sets of potential functions. A model of crystal structure calculated by molecular