PT Journal AU Furche, F Ahlrichs, R Wachsmann, C Weber, E Sobanski, A Voegtle, F Grimme, S TI Circular dichroism of helicenes investigated by time-dependent density functional theory SO J. of the Amer. Chem. Soc. 122 (2000) S. 1717-1724. PY 2000 LA english ER