Get access

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


  • 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.


original image

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).