A successful chemical strategy to induce oligothiophene self-assembly into fibers with tunable shape and function (Articolo in rivista)

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  • A successful chemical strategy to induce oligothiophene self-assembly into fibers with tunable shape and function (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/ja2014949 (literal)
Alternative label
  • Di Maria F., P. Olivelli, M. Gazzano, A. Zanelli, M. Biasiucci, G. Gigli, D. Gentili, P. D'Angelo, M. Cavallini, and G. Barbarella (2011)
    A successful chemical strategy to induce oligothiophene self-assembly into fibers with tunable shape and function
    in Journal of the American Chemical Society (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Di Maria F., P. Olivelli, M. Gazzano, A. Zanelli, M. Biasiucci, G. Gigli, D. Gentili, P. D'Angelo, M. Cavallini, and G. Barbarella (literal)
Pagina inizio
  • 8654 (literal)
Pagina fine
  • 8661 (literal)
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  • 133 (literal)
Rivista
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  • DOI: 10.1021/ja2014949 (literal)
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  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • Istitute for Organic Synthesis and Photoreactivity (ISOF-CNR) and Institute for Nanostructured Materials (ISMN-CNR), National Research Council, Via Gobetti 101, 40129 Bologna, Italy NNL-CNR Nanoscience Institute c/o Dip. Fisica Ed. G. Marconi, La Sapienza University, Roma, Italy and Electronical Engineering Department, Tor Vergata University, Via del Politecnico, 00133 Rome, Italy NNL-CNR Nanoscience Institute and Dip.Ingegneria Innovazione, Universit del Salento, Via Arnesano, 73100 Lecce, Italy (literal)
Titolo
  • A successful chemical strategy to induce oligothiophene self-assembly into fibers with tunable shape and function (literal)
Abstract
  • Functional supramolecular architectures for bottom-up organic nano- and microtechnology are a high priority research topic. We discovered a new recognition algorithm, resulting from the combination of thioalkyl substituents and head-to-head regiochemistry of substitution, to induce the spontaneous self-assembly of sulfur overrich octathiophenes into supramolecular crystalline fibers combining high charge mobility and intense fluorescence. The fibers were grown on various types of surfaces either as superhelices or straight rods depending on molecular structure. Helical fibers directly grown on a field effect transistor displayed efficient charge mobility and intrinsic ‘memory effect’. Despite the fact that the oligomers did not have chirality centers, one type of hand-helicity was always predominant in helical fibers, due to the interplay of molecular atropisomerism and supramolecular helicity induced by terminal substituents. Finally, we found that the new sulfur overrich oligothiophenes can easily be prepared in high yields through ultrasound and microwave assistance in green conditions. (literal)
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