Parallel (face-to-face) versus perpendicular (edge-to-face) alignment of electron donors and acceptors in fullerence porphyrin dyads: The importance of orientation in electron transfer [2] - Guldi, Dirk Michael; Luo, Chuping; Prato, Maurizio; Troisi, Alessandro; Zerbetto, Francesco; Scheloske, Michael; Dietel, Elke; Bauer, Walter; Hirsch, Andreas (Journal of the American Chemical Society, 2001)