De ontwikkeling van een QSAR voor de directe fotolyse van meta-gesubstitueerde halobenzeenderivaten in waterige oplossingen
Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Type
ReportLanguage
nl
Metadata
Show full item recordTitle
De ontwikkeling van een QSAR voor de directe fotolyse van meta-gesubstitueerde halobenzeenderivaten in waterige oplossingenTranslated Title
The development of a QSAR for the direct photolysis of meta substituted halobenzene derivatives in aqueous solutionsPubliekssamenvatting
A Quantitative Structure-Activity Relationship (QSAR) was developed for the photohydrolysis of meta-substituted halogenated benzene derivatives in water. At low concentrations both the starting compounds and the photoproducts were irradiated at wavelengths ranging from 250 - 350 nm. By measuring the concentration of the starting compounds and the photoproducts as a function of time, first order rate constants for direct photolysis were determined. Subsequently, quantum yields for photohydrolysis were determined. To this end use was made of the measured rates of disappearance, the relative energy distribution of the light source used and the UV-spectra of the starting compounds. Calculated quantum yields were 10log-transformed and correlated to a limited number of structural parameters. The best correlation was obtained using the inductive constants and the summation of the steric constants of the substituents to the benzene moiety as parameters.<br>Sponsors
DGM/SVSCollections