Self-assembly dynamics of modular homoditopic bis-calix[5]arenes and long-chain alpha,omega-alkanediyldiammonium components (Articolo in rivista)

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  • Self-assembly dynamics of modular homoditopic bis-calix[5]arenes and long-chain alpha,omega-alkanediyldiammonium components (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/jo801202h (literal)
Alternative label
  • G.Gattuso, A.Notti, A.Pappalardo, M.F.Parisi, I.Pisagatti, S.Pappalardo, D.Garozzo, A.Messina, Y.Cohen, S.Slovak (2008)
    Self-assembly dynamics of modular homoditopic bis-calix[5]arenes and long-chain alpha,omega-alkanediyldiammonium components
    in Journal of organic chemistry; ACS, American chemical society, Washington, DC (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G.Gattuso, A.Notti, A.Pappalardo, M.F.Parisi, I.Pisagatti, S.Pappalardo, D.Garozzo, A.Messina, Y.Cohen, S.Slovak (literal)
Pagina inizio
  • 7280 (literal)
Pagina fine
  • 7289 (literal)
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  • 73 (literal)
Rivista
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  • 10 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Chimica Organica e Biologica, UniVersita` di Messina, Salita Sperone 31, 98166 Messina, Italy, Dipartimento di Scienze Chimiche, UniVersita` di Catania, Viale A. Doria 6, 95125 Catania, Italy, CNR, ICTP Catania, Viale Regina Margherita 6, 95125 Catania, Italy, and School of Chemistry, The Raymond and BeVerly Sackler Faculty of Exact Sciences, Tel AViV UniVersity, Ramat AViV 69978, Tel AViV, Israel (literal)
Titolo
  • Self-assembly dynamics of modular homoditopic bis-calix[5]arenes and long-chain alpha,omega-alkanediyldiammonium components (literal)
Abstract
  • Homoditopic building blocks 1, featuring two ?-rich cone-like calix[5]arene moieties connected at their narrow rims by a rigid o-, m-, or p-xylyl spacer in a centrosymmetric divergent arrangement, show a remarkable tendency to spontaneously and reversibly self-assemble with the complementary homoditopic R,?-alkanediyldiammonium dipicrate guest salts C8-C12 · 2Pic through iterative intermolecular inclusion events, forming supramolecular assemblies whose composition and dynamics strongly depend upon the length of the connector, the geometry of the spacer, as well as the concentration and/or molar ratios between the two components. 1H NMR spectroscopy and ESI-MS studies of 1/Cn · 2Pic modular homoditopic pairs support the formation of discrete (bis)-endo-cavity assemblies with the shorter C8 and C9 connectors, and/or (poly)capsular assemblies with the longer C10-C12 components under appropriate concentrations and molar ratios (50 mM equimolar solutions). 1H NMR titration experiments and diffusion NMR studies provide clear evidence for the self-assembly dynamics of the complementary pairs here investigated. (literal)
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