Collect. Czech. Chem. Commun. 1983, 48, 976-983

Basicity of 1,4-tetracenequinone and its electronic spectra in the protonated states

Miloš Nepraša, Václav Kratochvíla, Václav Štěpánb, Miloš Titza and Bohuslav Gaša

a Research Institute of Organic Syntheses, 532 18 Pardubice-Rybitví
b Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, 162 06 Prague 6


Basicity of 1,4-tetracenequinone to the first and the second protonation degrees has been studied spectrophotometrically. Electronic spectra of mono- and diprotonated 1,4-tetracenequinone have been interpreted on the basis of the PPP method in the approximation of invariable βc and γ integrals.