A diaminomaleonitrile based selective colorimetric chemosensor for copper(ii) and fluoride ions

Abstract

A chemosensor showed colorimetric sensing for copper(ii) and fluoride by changing color from yellow to colorless and to orange.

Dinuclear complexes of europium(III) and gadolinium(III) ions with a julolidine–quinoline-based tridentate ligand

“…Consequently, it has been recognized as a versatile functional group for colorimetric metallo-supramolecular systems. Current research into these systems focuses on selective molecular recognition with common transition metals [14][15][16][17][18] and/or anions [19][20][21][22][23]. The julolidine-based colorimetric material used in this research is a Schiff base chemosensor ligand, HL, consisting of 8-hydroxyjulolidine-9-carboxaldehyde with 8-aminoquinoline in a 1 : 1 synthesis [24,25].…”

Real‐Time Probe for the Efficient Sensing of Inorganic Fluoride and Copper Ions in Aqueous Media

“…In recent years, there is an increasing interest in the development of simple and novel chemical probes for the sensing of environmental and/or biologically important ions ,. The rapid progress in this field is due to their simplicity, selectivity, high sensitivity and instantaneous response .…”

A Categorical Naked‐Eye Detection of Cu2+ and Zn2+ through a Donor‐Acceptor‐Donor (D‐A‐D)‐Type Salicylaldimine: An Experimental and Theoretical Approach

“…The chemosensors are now been considered as an economical, user friendly and handy replacement for various traditional instrumental methods viz. atomic absorption spectrometry, inductively coupled plasma mass spectroscopy (ICPMS), inductively coupled plasma‐atomic emission spectrometry (ICPAES) and voltammetric methods etc ,…”

“…The ability of Zn 2+ in terms of stereo‐chemical variation makes it a very good candidate for the biological system particularly in the enzymatic systems such as carboxypeptidase, carbonic anhydrase, superoxide dismutase etc ,. Likewise, Cu 2+ has also got fundamental importance in various physiological and biochemical processes being an essential cofactor of various enzymes and proteins ,. Nevertheless, the higher concentrations of Cu 2+ are reported to be responsible for diseases such as Menkes, Wilson‘s Parkinson's while that of Zn 2+ for ischemia, seizures, and Alzheimer's etc .…”