Outer-sphere anion recognition by a cyclen-based octadentate europium(Ⅲ) complex: pH dependent recognition of ortho-phthalic acid

摘要

An octadentate cyclen-based europium complex with amidic and hydroxyalkyl pendent moieties exhibits pH dependent ligand denticity associated with anion recognition. Unusually high hydration numbers are determined for ortho-phthalate ternary outer-sphere complexes for which modulation of lanthanide-based luminescence is observed.