Flash vacuum thermolysis of 4H-3,1-benzodithiin-4-thione: UV-photoelectron spectroscopy characterization of benzothiet-2-thione and quantum chemistry studies

T. Drewnowski , S. Leśniak , Anna Chrostowska (1) , Alain Dargelos (1) , S. Khayar

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux

Flash vacuum thermolysis of 4H-1,3-benzodithiin-4-thione (2) resulted in the formation of phenanthro[9,10-c]-1,2-dithiete (3) and 3H-1,2-benzodithiole-3- thione (4). The mechanism of this reaction, including the formation of benzothiet-2-thione (5′) as an intermediate, has been postulated. UV photoelectron spectra of 2 at variable temperature flash vacuum thermolysis have been recorded and analyzed considering the theoretical evaluation of ionisation potentials. © Taylor & Francis Group, LLC.

Mots clés: Benzothiet-2-thione; Flash vacuum thermolysis; Ionization potentials; UV-photoelectron spectra

Domaines: Chimie inorganique; Chimie organique

T. Drewnowski, S. Leśniak, Anna Chrostowska, Alain Dargelos, S. Khayar. Flash vacuum thermolysis of 4H-3,1-benzodithiin-4-thione: UV-photoelectron spectroscopy characterization of benzothiet-2-thione and quantum chemistry studies. Phosphorus, Sulfur, and Silicon and the Related Elements, 2009, 184 (5), pp.1269--1284. ⟨10.1080/10426500902856362⟩. ⟨hal-01566341⟩