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A conformationally constrained (coumarin-pyrrolidinyl-triazolyl-bipyridyl) fluoroionophore conjugate was synthesized through click chemistry. The fluoroionophore serves as a selective chemosensor for Al(3+) based on internal charge transfer. The coumarin-bipyridyl chemosensor exhibited a high association constant with submicromolar detection for the aluminum ion.
Maity et al. (Fri,) studied this question.