Fluorescent sensor for Zn2+ cations based on a 4-methoxy-1,8-naphthalimide derivative containing a dipicolylamine receptor fragment

A previously undescribed fluorescent sensor for zinc cations based on a 4-methoxynaphthalimide fluorophore and a receptor fragment represented by a dipicolylamine derivative was synthesized, and its spectral and luminescent properties were studied. The resulting fluorescent sensor demonstrated fluorescence enhancement upon complexation with Zn2+ cations due to the formation of ligand-metal complexes with a composition of 1: 1, in which the electron transfer process is suppressed.

Automated summary

This article describes the synthesis and characterization of a previously unknown fluorescent sensor for zinc cations, which demonstrates fluorescence enhancement upon complexation with Zn2+ due to the formation of ligand-metal complexes with a composition of 1:1.