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Nanospheres, Nanotubes, Toroids, and Gels with Controlled Macroscopic Chirality
Author(s) -
Arias Sandra,
Freire Félix,
Quiñoá Emilio,
Riguera Ricardo
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201406884
Subject(s) - chirality (physics) , helicity , supramolecular chemistry , polymer , materials science , toroid , nanotube , polymer chemistry , metal , crystallography , chemistry , carbon nanotube , nanotechnology , crystal structure , composite material , plasma , particle physics , quantum mechanics , nambu–jona lasinio model , metallurgy , physics , chiral symmetry breaking , quark
The interaction of a highly dynamic poly(aryl acetylene) (poly‐ 1 ) with Li + , Na + , and Ag + leads to macroscopically chiral supramolecular nanospheres, nanotubes, toroids, and gels. With Ag + , nanospheres with M helicity and tunable sizes are generated, which complement those obtained from the same polymer with divalent cations. With Li + or Na + , poly‐ 1 yields chiral nanotubes, gels, or toroids with encapsulating properties and M helicity. Right‐handed supramolecular structures can be obtained by using the enantiomeric polymer. The interaction of poly‐ 1 with Na + produces nanostructures whose helicity is highly dependent on the solvation state of the cation. Therefore, structures with either of the two helicities can be prepared from the same polymer by manipulation of the cosolvent. Such chiral nanotubes, toroids, and gels have previously not been obtained from helical polymer–metal complexes. Chiral nanospheres made of poly(aryl acetylene) that were previously assembled with metal(II) species can now be obtained with metal(I) species.