Perrhenate and pertechnetate anion recognition properties of cyclo[8]pyrrole
2014; Taylor & Francis; Volume: 27; Issue: 5-6 Linguagem: Inglês
10.1080/10610278.2014.988628
ISSN1061-0278
AutoresEvgeny A. Kataev, Patricia Pantos, Elizabeth Karnas, Grigory V. Kolesnikov, И. Г. Тананаев, Vincent M. Lynch, Jonathan L. Sessler,
Tópico(s)Supramolecular Chemistry and Complexes
ResumoCyclo[8]pyrrole, an octapyrrolic expanded porphyrin with no meso-linking atoms, was found to interact with a series of anions in the solid state and in a chloroform solution. The anion selectivities have been determined relative to a structurally characterised salt, H2cyclo[8]pyrrole2+·I− ·I3 − , via counter anion exchange. Although cyclo[8]pyrrole demonstrates a general selectivity for sulfate, it interacts well with both the pertechnetate and perrhenate anions. Moreover, it has been shown to act as a phase-transfer catalyst facilitating the extraction of pertechnetate from an aqueous to an organic phase in the presence of sulfate.
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