New receptors for anions in water: Synthesis, characterization, X-ray structures of new derivatives of 5,11,17,23-tetraamino-25,26,27,28-tetrapropyloxycalix[4]arene

Abstract

New derivatives of 5,11,17,23-tetraamino-25,26,27,28-tetrapropyloxycalix[4]arene were prepared by multi step synthesis. The compounds were characterised, their crystal and molecular structures were discussed, and they were tested as receptors for anions.

Keywords

• host-guest chemistry
• anion receptors
• stereochemistry of calixarenes
• NMR spectroscopy
• vibrational and UV spectra
• X-ray diffraction