Affiliation:
1. Department of Chemistry, University of Missouri–Columbia, Columbia, MO 65211, USA.
Abstract
Amphiphilic polyhedron-shaped
p
-sulfonatocalix[4]arene building blocks, which have been previously shown to assemble into bilayers in an antiparallel fashion, have been assembled in a parallel alignment into spherical and helical tubular structures by the addition of pyridine
N
-oxide and lanthanide ions. Crystallographic studies revealed how metal ion coordination and substrate recognition direct the formation of these supramolecular assemblies. The addition of greater amounts of pyridine
N
-oxide changed the curvature of the assembling surface and resulted in the formation of extended tubules.
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
567 articles.
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