Lanthanide luminescent anion sensing: evidence of multiple anion recognition through hydrogen bonding and metal ion coordination†
Abstract
The delayed lanthanide luminescence of the terbium [Tb(III)] diaryl-urea complex 1·Tb is significantly enhanced upon sensing of dihydrogenphosphate (H2PO4−) in CH3CN, which occurs through multiple anion binding through hydrogen bonding interactions and potential metal ion coordination to Tb(III).