## Abstract Data are presented in support of the view that the photochemical conversion of ergosterol into precalciferol, involving a cleavage of the cyclohexadieneβring, belongs to a generally occurring type of photochemical isomerisations. Under the influence of ultraviolet light 1,3βcyclohexadie
Quenching of photochemical reactions and of fluorescence of alkanones by 1,3-cyclohexadiene and cis-1,3-pentadiene
β Scribed by Yang, N. C.; Man Him Hui, ; Ballard, Sharon A.
- Book ID
- 126000324
- Publisher
- American Chemical Society
- Year
- 1971
- Tongue
- English
- Weight
- 384 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0002-7863
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The cis-trans photoisomerization pathway of the s-trans-1,3-pentadiene is investigated on the basis of excited state potential curves calculated using the CIPSI method in the excitonic (PCILO type) scheme. It is shown that both direct and sensitized excitation of either isomer are followed by equipr
## Abstract Sensitization of neat __cis__ or __trans__ 1,3βpentadienes by triplet benzophenone leads only to isomerization and dimerization. The quantum yields measured for these processes as well as the photostationary composition are strikingly different from the figures obtained in dilute soluti