Bis-cation salt complexation by meso-octamethylcalix[4]pyrrole: linking complexes in solution and in the solid state

Claudia Caltagirone; Nathan L. Bill; Dustin E. Gross; Mark E. Light; Jonathan L. Sessler; Philip A. Gale

doi:10.1039/B916113A

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Organic & Biomolecular Chemistry

Issue 1, 2010

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Bis-cation salt complexation by meso-octamethylcalix[4]pyrrole: linking complexes in solution and in the solid state

Claudia Caltagirone , Nathan L. Bill , Dustin E. Gross , Mark E. Light , Jonathan L. Sessler and Philip A. Gale

Org. Biomol. Chem., 2010, 8, 96-99

DOI: 10.1039/B916113A
Received 05 Aug 2009, Accepted 07 Oct 2009
First published on the web 04 Nov 2009

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Abstract
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Pyridinium and imidazolium bis-cations are shown to link calix[4]pyrrole anion complexes both in solution and in the solid state. This is accomplished by binding of the bis-cations to the electron-rich bowl shaped cavities formed by two separate calixpyrrole–anion complexes. These resulting sandwich-type structures provide a new way of organising calix[4]pyrrole anion complexes in space.

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Experimental, tabulated ITC data, original ITC plots andcrystallographic data
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Claudia Caltagirone
Nathan L. Bill
Dustin E. Gross
Mark E. Light
Jonathan L. Sessler
Philip A. Gale

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Organic & Biomolecular Chemistry

Bis-cation salt complexation by meso-octamethylcalix[4]pyrrole: linking complexes in solution and in the solid state

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