Bis-cation salt complexation by meso-octamethylcalix[4]pyrrole: linking complexes in solution and in the solid state.
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.
Caltagirone
Claudia
C
School of Chemistry, University of Southampton, Southampton, SO17 1BJ, UK.
Bill
Nathan L
NL
Gross
Dustin E
DE
Light
Mark E
ME
Sessler
Jonathan L
JL
Gale
Philip A
PA
D000838:Anions / Q000737:chemistry; D047250:Calixarenes / Q000737:chemistry*; D002151:Calorimetry; D002412:Cations / Q000737:chemistry; D018360:Crystallography, X-Ray; D007093:Imidazoles / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D011166:Porphyrins / Q000737:chemistry*; D011726:Pyridinium Compounds / Q000737:chemistry*
D000838:Anions; D002412:Cations; D007093:Imidazoles; D011166:Porphyrins; D011726:Pyridinium Compounds; C469811:calix(4)pyrrole; D047250:Calixarenes; C029899:imidazole