Quantum-chemical calculations thienothiophenes

Theoretical Studies and Physical Properties.—Quantum chemical calculations on the reactivity of thienothiophens have been carried out. " The e.s.r. spectra of the radical anions of carbonyl, nitro, and cyano derivatives of the two [b]-fused thiophens have been studied. The proton chemical shifts of 2-substituted thieno[2,3-b]thiophens have been correlated with the two-parameter equation of Swain and Lupton. " ... [Pg.433]

A. Isotope Exchange of Deuterated Thienothiophenes Quantum-Chemical Reactivity Calculations... [Pg.181]

Big Chemical Encyclopedia