Oxovanadium(IV) Salicylidene Glycine Complex with Phenanthroline as Co-ligand: Synthesis, Crystal Structure and Catalytic Degradation of Methyl Orange with H 2 O 2

Abstract

Abstract A Schiff base oxido vanadium complex derived from glycine and salicylaldehyde with phenanthroline as co-ligand viz. [VO(salgly)(phen)].4H2O (1) (where salgly = Schiff base derived from salicylaldehyde and glycine, phen = 1,10-phenanthroline) was synthesized under ambient conditions. The complex was characterized by elemental analysis and spectroscopic techniques such as FT-IR, UV-vis and electron paramagnetic resonance (EPR). The structure of the complex was determined by single crystal X-ray diffraction. The asymmetric unit of complex 1 consists of two crystallographically unique V(IV) centers along with four water molecules of crystallization. The crystal packing of 1 is stabilized by π∙∙∙π stacking and C-H∙∙∙O hydrogen bonding interactions. Thermogravimetric analysis (TGA) of the complex was carried to determine its thermal stability. Moreover, complex 1 showed good catalytic activity for the degradation of methyl orange (MO) in presence of hydrogen peroxide.