A New Selective Chromogenic and Turn-On Fluorogenic Probe for Copper(II) in Water−Acetonitrile 1:1 Solution

Abstract

A quinoline-indene derivative is described as a new highly selective and sensitive chromogenic and turn-on fluorogenic probe for the naked-eye detection of copper(II) cation in water-acetonitrile 1:1 mixture.

Fluorescent sensors for ions based on organic structures

“…The quinoline chromophore has also been used by Torroba et al who developed 73 for the sensing of Cu(II) in a 1 : 1 mixture of CH 3 CN-H 2 O. 54 The sensor showed significant changes in both the UV-Vis absorption and in the emission spectrum upon binding to Cu(II), in contrast to other d-metal ions. Using Job's plot analysis, the authors demonstrated the 1 : 1 binding of Cu(II) to 73.…”

Detection of Contaminants of High Environmental Impact by Means of Fluorogenic Probes

“…[29] Related push-pull conjugated fluorogenic probes have been further exploited in the search for sensing materials for heavy metal cations involved in environmental contamination. In this way, we have prepared luminescent, high-performance aromatic polyamides, in which the fluorescent behavior was achieved by inserting a fluorescent dipicolinic acid derivative in polyisophthalamides.…”

A Highly Selective Fluorescent Sensor for Cu2+ Based on a Covalently Immobilized Naphthalimide Derivative

“…This process decreases the electron-donating ability of the amino groups, and leads to a decrease in the ICT efficiency. 38,39 The ability of the optode membrane to recognize Cu(II) was investigated as shown in Fig. 2.…”