Literature DB >> 21043496

Stopped-flow kinetic analysis of the interaction of cyclo[8]pyrrole with anions.

Elizabeth Karnas1, Sung Kuk Kim, Kenneth A Johnson, Jonathan L Sessler, Kei Ohkubo, Shunichi Fukuzumi.   

Abstract

The on and off rates corresponding to the binding of two test anions (acetate, AcO(-), and dihydrogen phosphate, H(2)PO(4)(-), studied as their tetrabutylammonium salts) to diprotonated cyclo[8]pyrrole have been determined in CH(3)CN using stopped-flow analyses carried out at various temperatures. For dihydrogen phosphate, this afforded the activation enthalpies and entropies associated with both off and on processes. The different dynamic behavior seen for these test anions underscores the utility of kinetic analyses as a possible new tool for the advanced characterization of anion receptors.

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Year:  2010        PMID： 21043496      PMCID： PMC3078044          DOI： 10.1021/ja107471x

Source DB:  PubMed          Journal:  J Am Chem Soc        ISSN： 0002-7863            Impact factor:   15.419


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