Transformation of a Spherical Supramolecular Dendrimer into a Pyramidal Columnar Supramolecular Dendrimer Mediated by the Fluorophobic Effect

摘要

Semifluorinated and perfluorinated molecules have had a large impact on the field of chemistry and their use has provided new strategies in organic, suparamolcular, bimolecular, and macromolecular synthesis. It is well established that perfluorinated alkanes are stiffer and less miscible than the corresponding perhydrogenated alkanes (fluorophobic effect). As a consequence, the replacement of a perhydrogenated alkane with a perfluorinated alkane in the alkyl tail of a self-assembling building block enhances the thermal stability of the resulting supramolecular object and of the corresponding lattice.