Solution and solid-state interactions between para-sulphonato-calix-[4]- arene and some common organic biological buffers

Eric Da Silva, Farid Nouar, Anthony W. Coleman, Beth Rather, Michael J. Zaworotko

Research output: Contribution to journalArticlepeer-review

Abstract

The complexation of a series of organic buffers by para-sulphonato-calix- [4]-arene has been studied by 1H NMR titration spectroscopy and X-Ray crystallography. The association constant range is observed from 9 mM for 2-[N-Morpholino]ethanesulfonic acid] (MES) to 6720 mM for (1,3- bis[tris(hydroxymethyl)-methylamino]-propane) (BTP). The structure of BTP with para-sulphonato-calix-[4]-arene shows the buffer molecule to be partially included in the host cavity. The packing arrangement shows the normal bilayer organic clay motif.

Original languageEnglish
Pages (from-to)161-166
Number of pages6
JournalJournal of Inclusion Phenomena and Macrocyclic Chemistry
Volume46
Issue number3-4
DOIs
Publication statusPublished - Aug 2003
Externally publishedYes

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