Redox-linked pyrrole NH deprotonation in a dicopper azacryptate system
Abstract
The pyrrole-based cryptand L, has asymmetric conformation when coordinated to dicopper(I); one-electron oxidation yields a localized mixed-valence dicopper cryptate of the singly deprotonated ligand and two-electron oxidation a dicopper(II) cryptate of the triply deprotonated ligand; single crystal X-ray structure determination shows two different irregular sites for CuII.