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Controlling molecular self-organization: formation of nanometer-scale spheres and tubules | | G W Orr
; L J Barbour
; J L Atwood
; | | Date: |
13 Aug 1999 | | Journal: | Science, 285 (5430), 1049-52 | | 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. | | Source: | PubMed, pmid10446047 doi: 7735 | | Services: | Forum | Review | Favorites | |
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