Lower rim dimerization of a calixarene through the encapsulation of sodium ions

Resumo

Here we report the tail-to-tail dimerization of tetra(carboxymethoxy)calix[4]arene in both solution and solid state phases using ESI-orbitrap UHRMS, 1H-NMR and single-crystal X-ray diffraction techniques. Three sodium ions are encapsulated into the dimeric structure which is also stabilized by hydrogen bonds between carboxyl moieties undergoing partial deprotonation.

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Citação

MARTINS, Felipe Terra et al. Lower rim dimerization of a calixarene through the encapsulation of sodium ions. CrystEngComm, Cambridge, v. 18, n. 37, p. 6987-6991, 2016. DOI: 10.1039/C6CE01387B. Disponível em: https://pubs.rsc.org/en/content/articlelanding/2016/CE/C6CE01387B. Acesso em: 28 jun. 2023.