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.
Bis-cation salt complexation by meso-octamethylcalix[4]pyrrole: linking complexes in solution and in the solid state
CALTAGIRONE, CLAUDIA;
2010-01-01
Abstract
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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