Synthesis, Characterization, and Photochemical Studies of Some Copper Complexes of Schiff Bases Derived from 3‐Hydrazino‐6‐methyl[1,2,4]triazin‐5(4H)one

Abstract

Cu(II) complexes of new bidentate and tridentate Schiff bases derived from the condensation of 3‐hydrazino‐6‐methyl[1,2,4]triazin‐5(4H)one and aromatic aldehyde derivatives were synthesized and characterized. The structure of the complexes proposed according to elemental analyses, molar conductance, IR UV‐Visible absorption spectra is square‐planar. The thermodecomposition kinetics of the complexes were investigated under non‐isothermal condition. TG and DTG curves indicated that the complexes decompose in three to six steps. The photochemical behavior of the complexes depends on the substituted group on the aromatic aldehyde. A mechanism has been suggested to account for the recorded results.

Keywords:

• Schiff bases
• Copper(II) complexes
• 3‐Hydrazino‐6‐methyl[1,2,4]triazin‐5(4H)one
• Photochemical and thermal behavior