The self-assembly of internally ion-paired, neutral AA/BB-type supramolecular polymers composed of complementary di-ionizable homoditopic pairs of monomers is reported. Host-to-guest double-proton transfer mediates the recognition between bis-calix[5]arenedicarboxylic acids and α,ω-diaminoalkanes to yield cyclic, doughnut-shaped assemblies with morphologies (i.e., cyclic vs. linear) that can be controlled by means of external chemical stimuli. The behavior of these intriguing aggregates, both in solution and on surfaces, has been investigated by a combination of1H and DOSY NMR spectroscopy, light-scattering, and atomic force microscopy.

Ring/Chain Morphology Control in Overall-Neutral, Internally Ion-Paired Supramolecular Polymers

Pappalardo, Andrea
Membro del Collaboration Group
;
2018-01-01

Abstract

The self-assembly of internally ion-paired, neutral AA/BB-type supramolecular polymers composed of complementary di-ionizable homoditopic pairs of monomers is reported. Host-to-guest double-proton transfer mediates the recognition between bis-calix[5]arenedicarboxylic acids and α,ω-diaminoalkanes to yield cyclic, doughnut-shaped assemblies with morphologies (i.e., cyclic vs. linear) that can be controlled by means of external chemical stimuli. The behavior of these intriguing aggregates, both in solution and on surfaces, has been investigated by a combination of1H and DOSY NMR spectroscopy, light-scattering, and atomic force microscopy.
2018
atomic force microscopy; calixarenes; light scattering; NMR spectroscopy; polymers; supramolecular chemistry; Chemistry (all)
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Chem. Eur. J. 2018, 24, 1097 – 1103.pdf

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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/320641
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