Evolution of Homochiral Helical Dye Assemblies: Involvement of Autocatalysis in the “Majority-Rules” Effect

Authors


  • This work was supported by the Deutsche Forschungsgemeinschaft (Wu 317/1-5) and the Fonds der Chemischen Industrie. We thank S. Geschwentner and S. Gruss for help with mathematical questions and Dr. M. Knoll for performing AFM measurements.

Abstract

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Chiral amplification in action: Kinetic studies on the self-assembly of bis(merocyanine) dyes reveal that two phenomena that have been suggested to be of importance for natural homochirogenesis, namely, autocatalysis and the “majority-rules” effect, are both involved in the evolution of homochiral helical dye nanorods (see picture, D=supramolecular oligomer species; H1=kinetically self-assembled nanorods; H1*=H1-type aggregate precursors).

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