Diprotonated Sapphyrin: A Fluoride Selective Halide Anion Receptor

摘要: Prior solid-state structural evidence (Sessler, J.L.;Cyr,M.J.;Lynch,V.;McGhee, E.;J.A.J.Am.Chem. Soc. 1990, 112, 2810-2813) served to indicate that the diprotonated form of 3;8;12;13;17;22-hexaethyl-2,7,18,23-tetramethylsapphyrin ([2.2H] 2+ , as its mixed fluoride-hexafluorophosphate salt, [1.2H.F].PF 6 is capable encapsulating fluoride anion within ca. 5.5 A diameter pentaaza macrocyclic core. The present report describes solution-phase studies related these earlier ones