Novel Inorganic Fluorescent Chemosensor: Rational Design and Selective Mg2+ Detection

A Zn2+ based complex, 3, displays greatly increased fluorescence emission in the presence of Mg2+. Fluorescent and computational studies suggest 3 selectively interacts with Mg2+ due to optimal cavity size formation between two uncoordinated pyrazole side arms. This work thus represents a new approach to the development of fluorescent chemosensors.