Synthesis and salient chemosensing properties of a new thiazole-azo derivative

Chemosensors based on N-heterocyclic dyes: advances in sensing highly toxic ions such as CN− and Hg2+

“…The advantages of this method include the use of simple equipment, short-term detection, high selectivity and sensitivity, and avoiding sample pretreatment. 17,18,20,24,[36][37][38][39] Numerous screening tests are performed with the standard atomic absorption (AA) methods and inductively coupled plasma emission spectroscopy (ICP-AES) to quantify different ions with high efficiency and at trace levels. [36][37][38][39] The rapidly developed molecular sensor chemistry strongly relates to photochemistry given that the probe interaction with the analyte results in variations in their photophysical properties and spectral changes in the chemosensoranalyte complexes.…”

“…Alternatively, Yeap and co-workers 24 synthesized the resorcinol derivative 6 bearing the 2-thiazolyldiazenyl group at position 4, which works for the colorimetric detection of Hg 2+ (LOD = 1.20 × 10 −7 M in MeCN). This probe shows two absorption bands at 350 and 465 nm, which are assigned to the n–π* and π–π* transitions of the aryl-azo group and the thiazole ring, respectively ( Fig.…”