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- ISSN: 1570-1786
- E-ISSN: 1875-6255
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Molecular Recognition of Alkylammonium, N-Methylpyridinium Cations and Native L-α-Amino Acids by Water Soluble Penta- and Tetra-Sulfonatocalixarenes
- Source: Letters in Organic Chemistry, Volume 6, Issue 8, Dec 2009, p. 598 - 603
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- 01 Dec 2009
Abstract
The inclusion of ethylammonium, N-methylpyridinium cations and native L-α-amino acids by the watersoluble pentasulfonatocalix[5]arene 1 has been investigated at neutral pH by 1H NMR. The complexation behavior has been compared with that of the homologous tetrasulfonatocalix[4]arene 2. Unlike host 2, host 1 exhibits high selectivity in the recognition of the investigated guests.
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