Effect of ultrasound on the photolysis of carbon tetrachloride mediated by benzothiazole derivatives. 2-Sulfanylbenzothiazoles

Autor: Renáta Mračnova, Štefan Toma, Anton Gáplovský, Bibiana Jakubı́ková, Jean-Louis Luche, Katarína Gáplovská
Rok vydání: 2002
Předmět:
Zdroj: Journal of the Chemical Society, Perkin Transactions 2. :652-656
ISSN: 1364-5471
1472-779X
Popis: The photodecomposition of carbon tetrachloride was studied under sonication in the presence of N-(tert-butyl)benzothiazole-2-sulfenamide (TBBS), N-(cyclohexyl)benzothiazole-2-sulfenamide (CBS), and 2-sulfanylbenzothiazole (MBT) as electron donors. By following the concentrations of Cl− and C2Cl6 as a function of time, it was shown that ultrasound decreases their rate of formation when TBBS and CBS were used, but it has no effect in the presence of MBT. These observations were rationalized by a cavitation-induced destabilization of the contact ion pair (CIP) formed from exciplexes.
Databáze: OpenAIRE