Selective fluorescence sensing of Mg²⁺ ions by Schiff base chemosensor: effect of diamine structural rigidity and solvent

Abstract

Highly selective strong turn-on fluorescence for Mg²⁺ (<italic>Φ</italic> = 0.03 to 0.57) was realized with a simple Salen based Schiff base chemosensor (<bold>1a</bold>) using dimethylformamide (DMF) or dimethyl sulfoxide (DMSO) as solvent.