B10: Design, synthesis, physical and theoretical characterisation of new charge-transfer complexes (Müllen/Felser)

Prof. Dr. Klaus Müllen
Max-Planck-Institut für Polymerforschung, Mainz
Tel.: +49-6131-379-151
Fax: +49-6131-379-350
E-mail: muellen(at)mpip-mainz.mpg.de

Prof. Dr. Claudia Felser
Inst. f. Anorg. Chemie, Johannes Gutenberg-Universität, Mainz
Tel.: +49-6131-39-21284
Fax: +49-6131-39-26267
E-mail: felser(at)uni-mainz.de

New charge-transfer (CT) complexes from polycyclic aromatic hydrocarbons of various sizes being modified by functional groups to tune their donor and acceptor character will be prepared. Additionally, derivatives will be employed which are hydrogenated at the periphery in order to be less rigid and planar - features which are considered promising for the materials' conducting properties. The design of further molecules will be supported by theoretical guidelines regarding the HOMO-LUMO matching and band structure analysis. Different crystallisation techniques will be applied, as well as thin film formation towards CT complexes.

Several interactions with other projects are planned such as pressure-dependent studies of the conductivity in project Lang (B6), the electronic properties and CT performance in Aeschlimann/Felser/Schönhense (B8), and thin film cosublimation of components provided here in the project Huth (B9). Further interactions will be with the project Gros (B7) via model calculations on the superconducting- and normal-state properties.