Development of Analytical and Separation Systems Using Ternary Complexation Characteristics of Tris(β-diketonato)lanthanides

Abstract

A variety of analytical applications were developed using tris(β-diketonato)lanthanides. In addition to high coordination numbers and fast kinetics, their lanthanide centers have high Lewis acidities to form ternary complexes between mother lanthanide complexes and external substrates. Such ternary complexation offered anion selective electrode determination, naked-eye anion detection, near-infrared luminescence sensing of amino acids and separation of lanthanide compounds. These examples provided effective separation and analytical methods for current bioscience and medical applications based on common tris(β-diketonato)lanthanides.