Probing the inner space of salt-bridged calix[5]arene capsules.

Org Lett

Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, via L. Giorgieri 1, 34127 Trieste, Italy.

Published: May 2014

AI Article Synopsis

  • - The study uses both DOSY (Diffusion-Ordered Spectroscopy) and XRD (X-ray Diffraction) techniques to explore how a specific receptor can capture certain molecules.
  • - The receptor in question is a carboxylcalix[5]arene, which can effectively bind to α,ω-diamines that are the right length.
  • - The binding process involves two main steps: a proton-transfer that helps the receptor recognize the diamines, and a salt-bridge that aids in forming a stable complex.

Article Abstract

A combined DOSY and XRD study indicates that a carboxylcalix[5]arene receptor is able to encapsulate α,ω-diamines of appropriate length by means of a proton-transfer-mediated recognition process followed by salt-bridge-assisted bis-endo-complexation.

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Source
http://dx.doi.org/10.1021/ol500673nDOI Listing

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