A COLORIMETRIC SENSOR FOR THE RECOGNITION AND QUANTIFICATION OF FE2+/FE3+ SPECIES

A simple and easily synthesized colorimetric chemosensor based on oxygen and nitrogen binding and signaling unit, has been synthesized in one-step procedure. Sensor showed immediate responses towards Fe2+ and Fe3+ species through change in absorption spectrum. Moreover, instant color change from yellow to pink can be easily observed by naked-eye. Thus, this sensor provides an approach in recognizing biologically important element through simple and easily affordable technique.