Synthesis and characterization of multifunctional Schiff base and Cu(II) complex: Degradation of organic dyes and an optical property investigation

Abstract A new mononuclear complex was successfully synthesized on the basis of a Schiff-base ligand L = 1,2-phenylendiamine-N,N′-bis(3-tert-butyl-5-(4-pyridyl)salicylidene) and CuCl 2 . Its structure was characterized by single-crystal X-ray diffraction, IR spectroscopy, thermogravimetric analysis (TGA) and powder X-ray diffraction. The complex has a remarkable activity for photodegradation of organic dyes under visible-light illumination. Moreover, the complex showed optical property: a fluorescence quenching phenomenon was observed at 518 nm when using a 350 nm excitation light to stimulate the samples.