Calix[4]pyrroles with bulky substituents and their anion binding studies

Authors

AHMET AKAR
ABDULLAH AYDOGAN

DOI

10.3906/kim-1611-43

Abstract

Calix[4]pyrrole derivatives with bulky substituents at their meso-positions were synthesized via mixed condensation of pyrrole with cyclohexanone and acetophenone derivatives. Anion binding studies, carried out by isothermal titration calorimetry in 1,2-dichloroethane with Cl$^{-}$ and CH$_{3}$CO$_{2}^{-}$ anions in the form of their tetrabutylammonium salts, revealed that these new calix[4]pyrrole derivatives can bind the aforementioned anions as effectively as the unsubstituted ''parent'' system, octamethylcalix[4]pyrrole (1). Structural characterizations of new calix[4]pyrroles were carried out by using $^{1}$H and $^{13}$C NMR spectroscopy corroborated with mass spectrometry.

Keywords

Calix[4]pyrrole, anions sensors, anion binding

First Page

493

Last Page

501

Recommended Citation

AKAR, AHMET and AYDOGAN, ABDULLAH (2017) "Calix[4]pyrroles with bulky substituents and their anion binding studies," Turkish Journal of Chemistry: Vol. 41: No. 4, Article 3. https://doi.org/10.3906/kim-1611-43
Available at: https://journals.tubitak.gov.tr/chem/vol41/iss4/3