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Piling up pillar[5]arenes to self-assemble nanotubes

AuthorsBarberá, Joaquín; Deschenaux, Robert; Nierengarten, Jean-François
KeywordsSupramolecular chemistry
Inclusion complexes
Liquid crystals
Issue Date2016
CitationChemistry - A European Journal 22(18): 6185-6189 (2016)
AbstractNew liquid-crystalline pillar[5]arene derivatives have been prepared by grafting first-generation Percec-type poly(benzylether) dendrons onto the macrocyclic scaffold. The molecules adopt a disc-shaped structure perfectly suited for self-organization into a columnar liquid-crystalline phase. In this way, the pillar[5]arene cores are piled up, thus forming a nanotubular wire encased within a shell of peripheral dendrons. The capability of pillar[5]arenes to form inclusion complexes has been also exploited. Specifically, detailed binding studies have been carried out in solution with 1,6-dicyanohexane as the guest. Inclusion complexes have also been prepared in the solid state. Supramolecular organization into the Col mesophase has been deduced from X-ray diffraction data and found to be similar to that observed within the crystal lattice of a model inclusion complex prepared from 1,4-dimethoxypillar[5]arene and 1,6-dicyanohexane.
Identifiersdoi: 10.1002/chem.201600688
e-issn: 1521-3765
issn: 0947-6539
Appears in Collections:(ICMA) Artículos
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