The formation of self-assembled structures triggered by pyridinium-based gemini guests in the presence of a sulfonato-calix[4]arene receptor has been thoroughly examined via isothermal titration calorimetry (ITC) in neutral aqueous solution. Data confirm the existence of a 1:1 host-guest complex, in which the guest is strongly bound to the host cavity, and the formation of a 2:1 capsular-like adduct. The splitting of the DG° term into the enthalpic and entropic contributions allowed to highlight the often opposing forces driving the encapsulation process which strongly depend on the size and shape of the gemini guest.

Self-assembling of supramolecular adducts by sulfonato-calix[4]arene and pyridinium gemini guests in neutral aqueous solution

Bonaccorso, Carmela;MIGLIORE, ROSSELLA;Arena, Giuseppe;Sgarlata, Carmelo
2017

Abstract

The formation of self-assembled structures triggered by pyridinium-based gemini guests in the presence of a sulfonato-calix[4]arene receptor has been thoroughly examined via isothermal titration calorimetry (ITC) in neutral aqueous solution. Data confirm the existence of a 1:1 host-guest complex, in which the guest is strongly bound to the host cavity, and the formation of a 2:1 capsular-like adduct. The splitting of the DG° term into the enthalpic and entropic contributions allowed to highlight the often opposing forces driving the encapsulation process which strongly depend on the size and shape of the gemini guest.
Capsular-like adduct; Driving forces; Gemini guest; Host-guest complex; Isothermal titration calorimetry; Water-soluble calixarene
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/314523
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 8
social impact