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    Enhancing the supramolecular stability of monolayers by combining dipolar with amphiphilic motifs: a case of amphiphilic push-pull-thiazole

    Year: 2019

    Journal: Phys. Chem. Chem. Phys., Volume 21, 1-Jun, page 13241–13247

    Authors: Hupfer, M. L.; Kaufmann, M.; May, S.; Preiss, J.; Weiss, D.; Dietzek, B.; Beckert, R.; Presselt, M.

    Organizations: Deutsche Forschungsgemeinschaft DFGGerman Research Foundation (DFG) [PR 1415/2-1]; Bundesministerium fur Bildung und ForschungFederal Ministry of Education & Research (BMBF) [BMBF FKZ 03EK3507]; Nagelschneider Stiftung

    Equipping a thiazole dye with push and pull moieties adds dipolar intermolecular interactions and two hydrophilic anchors to a centrally anchored pi-stacking and otherwise mono-amphiphilic dye. We show that, despite the resulting irregular shape of the tripodal amphiphile, the enhanced intermolecular interactions and amphiphilicity yield smooth and stable thin films. Furthermore, we present a first approach for deriving supramolecular binding energies from the Langmuir-Blodgett hysteresis data.
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