Tweezer-type binding cavity formed by the helical folding of a carbazole-pyridine oligomer.
Chem Commun (Camb)
; 58(9): 1410-1413, 2022 Jan 27.
Article
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| MEDLINE
| ID: mdl-34994755
ABSTRACT
We have synthesised a new aromatic foldamer based on the carbazole-pyridine oligomers that adopt helical conformations via dipole-dipole interactions and π-stacking between two ethynyl bond-linked monomers. This foldamer scaffold has been further modified into a synthetic receptor with a tweezer-type binding cavity outside the helical backbone upon folding, in contrast to most aromatic foldamers with internal binding cavities. The tweezer-type cavity is composed of two parallel pyrenyl planes, allowing for the intercalation of a naphthalenediimide guest via π-stacking and CHâ¯O interactions, as demonstrated using its 1H NMR spectra and X-ray crystal structure.
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MEDLINE
Idioma:
En
Revista:
Chem Commun (Camb)
Asunto de la revista:
QUIMICA
Año:
2022
Tipo del documento:
Article