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Third-party-funded project

Organization of Merocyanine Dyes to Functional Superstructures and New Materials

Project management at the University of Würzburg:

Participating scientists:


Merocyanines with their dipolarity and polarizability belong to the favourite dyes for future applications in the non-linear optic. This project deals with the organization of these dyes in extended three-dimensional structures through intermolecular interactions. The aggregation of merocyanine dyes in antiparallel-oriented dimers and the coordination of melamines to merocyanine through hydrogen bonding as well as the realisation of supramolecular polymers (= association polymers) are the main objectives of this project. Compounds with two merocyanine units are synthesized which form polymeric chains by aggregation of the merocyanines. These polymers are supposed to attain the possibility to create secondary structures, e.g. helices, fibers, layers, organogels as well as lyotropic and thermotropic liquid crystalline phases, through proper selection of substituents. Furthermore, sixfold hydrogen-bonds are applied as a driving force for reversible polymerization process to facilitate parallel alignment of dipolare dyes which will expectedly provide high susceptibility of two arrangements.  



Key words:
    Merocyanine Dyes
    Dipolar Aggregation
    Nonlinear Optic
    Photorefractive Materials

Projekt period: from 05.2001 to 10.2004

Funding institution:
DFG ,Granting date: 03.05.2001