title: Efficient tuning of LUMO levels of 2,5,8,11-substituted perylenediimides via copper catalyzed reactions.
abstract: Via one-step copper catalyzed procedures it was possible to synthesize 2,5,8,11-tetrabromo, tetrachloro, and tetracyano derivatives of perylenediimides. Characterization of optical and electrochemical properties of these materials proves substantial enhancement of the electron affinity, with a LUMO level as low as -4.4 eV in the case of the tetracyano perylenediimide.
authors.affiliation: Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
authors.forename: Glauco
authors.initials: G
authors.lastname: Battagliarin
authors.forename: Yanfei
authors.initials: Y
authors.lastname: Zhao
authors.forename: Chen
authors.initials: C
authors.lastname: Li
authors.forename: Klaus
authors.initials: K
authors.lastname: Müllen