Coordination of oxovanadium(Ⅴ) in an expanded porphyrin macrocycle

摘要

The formation of a dioxovanadium(Ⅴ) complex of an expanded porphyrin-type Schiff base macrocycle is reported; the tetra-pyrrolic ligand undergoes a tautomeric shift which permits a bimodal recognition of the nonspherical cationic guest.