title: Facile synthetic approach to novel core-extended perylene carboximide dyes.
abstract: The straightforward synthesis of two new classes of core-extended perylene chromophores, dibenzocoronene tetracarboxdiimide and indenoperylene dicarboxmonoimide, proves that directional enlargement of the aromatic pi-system leads to tailored bathochromic and hypsochromic shifts.
authors.affiliation: Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
authors.forename: Sibylle
authors.initials: S
authors.lastname: Müller
authors.forename: Klaus
authors.initials: K
authors.lastname: Müllen