A new colorimetric sensor for Cu2+ detection based on s-triazine cored amino carbazole

Abstract

Triazine cored 3-amino-9ethly-carbazole (TAC) was designed, synthesized and characterized to constitute a new chemosensor for detecting Cu 2+ with high selectivity over different metal ions. Besides, the optimized geometry of TAC was determined. Through TAC-Cu 2+ interaction, TAC depicted a detectable absorbance and fluorescence signal shifting. This interaction was related to binding between -NH group of TAC and Cu 2+ ion. Furthermore, stoichiometric ratio of TAC-Cu 2+ determined using Job's plot as 3:2 (Cu 2+ : TAC). Consequently, TAC fluorescent chemosensor for Cu 2+ ions is important study for environmental and biological studies.