Design of aromatic helical polymers for STM visualization: imaging of single and double helices with a pattern of π-π stacking.
Angew Chem Int Ed Engl
; 54(10): 3097-101, 2015 Mar 02.
Article
em En
| MEDLINE
| ID: mdl-25630303
ABSTRACT
From scanning tunneling microscopy (STM) images of rationally designed helical polymers with a pattern of π-π stacking, we successfully identified the single- and double-helical superstructures. The STM images of the helical structures revealed the smallest helical architecture (diameter ca. 1.3â
nm) that has been seen so far. Furthermore, the interconversion of single and double helices was further underpinned by experimental analyses. Significantly, the formation of double helices induced different supramolecular chirality to that observed for the single helices.
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MEDLINE
Assunto principal:
Microscopia de Tunelamento
Idioma:
En
Ano de publicação:
2015
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Article