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Synthesis and Anion Binding by Phosphonium Calix[4]arenes

R. Pomecko 1,2Z. Asfari 1V. Hubscher 1F. Amaud-Neu 1J. Vicens 1M. Bochenska 2

1. UMR 7512 (CNRS-ULP), ECPM, 25 rue Becquerel, Strasbourg 67087, France
2. Gdańsk University of Technology, Department of Chemical Technology, Narutowicza 11/12, Gdańsk 80-264, Poland


Anion binding can be achieved by neutral receptors through hydrogen bonding or by positively charged ligands through electrostatic interaction.1 Some examples of both types of receptors based on calixarene structures have already been published.2
We report here the synthesis of two new positively charged calix[4]arene derivatives substituted at the lower rim by two and four triphenylphosphonium butyl groups, respectively. The first results of UV and NMR experiments concerning their ability to complex tetrahedral oxyanions (ClO4 -) and iodide will also be presented.

1. P. D. Beer and P. A. Gale, Angew. Chem. Int. Ed. Engl. 2001, 40, 486.
2. S. E. Matthews, P. D. Beer, in "Calixarenes 2001", Z. Asfari, V. Bohmer, J. Harrowfield, J. Vicens Eds., Kluwer Academic Publishers, Dordrecht, 2001, p. 421-439.


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Presentation: Short communication at SMCBS 2003 Workshop, by Radoslaw Pomecko
See On-line Journal of SMCBS 2003 Workshop

Submitted: 2003-09-16 09:21
Revised:   2009-06-08 12:55