Enamides 3a-c and 6 crystallize in cx-packing modes with short.intermolecular distances of 3.7-4.0/~ between alkene carbon atoms of adjacent molecules related by a center of symmetry. Irradiation at 350 nm of these crystalline tertiary phenylethenyl enamides affords head-to-tall dimers 8a-c and 9, r
Reversible photodimerization of phenylbutadienes in the solid state
β Scribed by T.N. Guru Row; H. Ramachandra Swamy; K. Ravi Acharya; V. Ramamurthy; K. Venkatesan; C.N.R. Rao
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 184 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The photodimerization of benzo-annellated acridizinium derivatives, namely naphtho[1,2-b]quinolizinium and naphtho[2,1-b]quinolizinium bromide, has been investigated in solution and in the solid state. Irradiation of the naphthoquinolizinium salts in solution gave all possible regioisomers in an uns
The locus of the photodimerization reaction of 9-methylanthracene in the crystal was examined by high-resolution solid-state 13C NMR techniques. Examination of the 13C spectra of the products showed that only the trans dimer is formed by the solid state photodimerization, while both trans and cis di
Photodimerization of fumaric or several g-form trans-cinnamic acids proceeded successfully in the solid state through amine salt formation with ammonia or some aromatic heterocyclic amines (especially, imidazole). It appears that this success is due to a small size or a planar structure of the amine