Lower Rim Substituted tert-Butyl Calix[4]Arenes (Part IV). Calix[4]Arene-Crown Ethers as Ionophores in Plasticized PVC-Membrane Electrodes

We present the synthesis and characterization of p‐tert‐butylcalix[4]arene‐crown ethers (compounds 2–4) with different length of the polyethylenoxy bridge between the distal phenolic OH groups. The studied compounds show selectivity for sodium, potassium or cesium ions. The correlation was made betw...

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2003-09, Vol.15 (15-16), p.1307-1313
Main Authors: Bocheńska, Maria, Zielińska, Anna, Pomećko, Radosław, Kravtsov, Victor Ch, Gdaniec, Maria
Format: Article
Language:English
Subjects:
Complex formation constants
Ion selective membrane electrodes
p-tert-Butyl-calixarene-crowns-4
p‐tert‐Butyl‐calixarene‐crowns‐4,‐5,‐6
Selectivity coefficients
X-ray structure
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Summary:We present the synthesis and characterization of p‐tert‐butylcalix[4]arene‐crown ethers (compounds 2–4) with different length of the polyethylenoxy bridge between the distal phenolic OH groups. The studied compounds show selectivity for sodium, potassium or cesium ions. The correlation was made between the stereochemical structure of the ligands and potentiometrically determined ion‐selectivity and complex formation constants. The crystal and molecular structure of the p‐tert‐butylcalix[4]arene‐crown‐5 complex with potassium iodide have been determined by single crystal X‐ray diffraction study.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.200302813