Author/Authors :
Rettig، نويسنده , , W. and Kharlanov، نويسنده , , V. and Effenberger، نويسنده , , F. and Steybe، نويسنده , , F.، نويسنده ,
Abstract :
Thiophene containing biaryls of ionic and nonionic character are investigated with respect to their photophysical properties and their ground and excited state hypersurfaces. The ionic dimethylamino-thiophene-pyridinium derivative showed a strong nonradiative deactivation channel assigned to intramolecular twisting and charge shift by analogy with a related biphenyl-type compound and based on the quantum chemical results. Implications for the induction of molecular photodiode behaviour and the possible construction of molecular photoswitches are discussed.
