Issue 27, 2011
From the journal:

Chemical Communications

Supramolecular organization of calix[4]pyrrole with a methyl-trialkylammonium anion exchanger leads to remarkable reversal of selectivity for sulfate extractionvs.nitrate†

Christopher J. Borman,a   Radu Custelcean,a   Ben P. Hay,a   Nathan L. Bill,b   Jonathan L. Sesslerbc  and  Bruce A. Moyer*a  

* Corresponding authors

a Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
E-mail: moyerba@ornl.gov
Fax: +1 865 574 4939
Tel: +1 865 574 6718

b Department of Chemistry and Biochemistry, Institute for Cellular and Molecular Biology, The University of Texas, Austin, TX, USA

c Department of Chemistry, Yonsei University, Seoul 120-749, Korea

Abstract

meso-Octamethylcalix[4]pyrrole (C4P) enhances sulfate selectivity in solvent extraction by Aliquat® 336N, an effect ascribed to the supramolecular preorganization and thermodynamic stability imparted by insertion of the methyl group of the Aliquat cation into the cup of C4P in its cone conformation.

Graphical abstract: Supramolecular organization of calix[4]pyrrole with a methyl-trialkylammonium anion exchanger leads to remarkable reversal of selectivity for sulfate extractionvs.nitrate

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Article information

DOI
https://doi.org/10.1039/C1CC12060C
Article type
Communication
Submitted
11 Apr 2011
Accepted
24 May 2011
First published
13 Jun 2011

Chem. Commun., 2011,47, 7611-7613

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Supramolecular organization of calix[4]pyrrole with a methyl-trialkylammonium anion exchanger leads to remarkable reversal of selectivity for sulfate extractionvs.nitrate

C. J. Borman, R. Custelcean, B. P. Hay, N. L. Bill, J. L. Sessler and B. A. Moyer, Chem. Commun., 2011, 47, 7611 DOI: 10.1039/C1CC12060C

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