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Helical Nanofibers Formed by Palladium-Mediated Assembly of Organic Homochiral Macrocycles Containing Binaphthyl and Pyridyl Units.
Agnes, Marco; Arabi, Ameneh; Caricato, Marco; Nitti, Andrea; Dondi, Daniele; Yannakopoulou, Konstantina; Patrini, Maddalena; Pasini, Dario.
Afiliación
  • Agnes M; Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy.
  • Arabi A; Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & 27 Neapoleos str., 15341, Agia Paraskevi, Greece.
  • Caricato M; Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy.
  • Nitti A; Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy.
  • Dondi D; Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy.
  • Yannakopoulou K; Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy.
  • Patrini M; Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & 27 Neapoleos str., 15341, Agia Paraskevi, Greece.
  • Pasini D; Department of Physics, University of Pavia, Via Bassi 6, 27100, Pavia, Italy.
Chempluschem ; 86(2): 270-274, 2021 02.
Article en En | MEDLINE | ID: mdl-33565730
Herein, we report the synthesis and characterization of homochiral macrocycles, in which molecular rigidity, combined with the presence of multiple functional groups, allow for the assembly of helical nanostructures. 1,1'-bi-2-naphthol (Binol) units are used as robust chirality inducers, and pyridyl units embedded within the molecular frameworks allow the assembly, upon coordination with Pd(II) metal ions, of the macrocyclic building blocks. CD and NMR spectroscopies show the formation of ordered 1D assembly in solution. AFM studies indicate that the molecular systems are capable of forming nanoscale structures. The effective transfer of chiral information results in helical nanofibers, with lengths ranging from a few hundreds of nanometers to some micrometers. AFM line profiles reveal a helical longitudinal period of about 50 nm and a transverse width of 25 to 45 nm after deconvolution.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chempluschem Año: 2021 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chempluschem Año: 2021 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Alemania