Synthesis and Crystal Structure of a μ₂-Oxo Bridged Dinuclear Oxovanadium(V) Complex Derived From N′-(2-Hydroxy-4-diethylaminobenzylidene)-3-methylbenzohydrazide

Abstract

A tridentate hydrazone ligand N′-(2-hydroxy-4-diethylamino benzylidene)-3-methylbenzohydrazide (H₂L), reacts with vanadyl sulfate in methanol to give a novel μ ₂-oxo bridged dinuclear oxovanadium(V) complex, [V₂O₂(μ ₂-O)L₂]. The complex was characterized by physicochemical and spectroscopic methods. The crystal of the complex is triclinic with space group P–1, a = 11.349(2), b = 13.385(3), c = 13.644(2) Å, α = 90.377(2)°, β = 93.772(2)°, γ = 109.239(2)°, V = 1951.8(6) ų, Z = 2. X-ray crystallography indicates that each V atom is in a distorted square pyramidal coordination. The two V atoms are bridged by one O atom, with a distance of 3.010(1) Å.

Keywords:

• crystal structure
• dinuclear complex
• hydrazone
• oxovanadium complex
• synthesis

Acknowledgments

This work was financially supported by Postdoctoral Science Foundation of Central South University (No. 20120248), National Natural Science Foundation of China (Nos. 21171174, 21071052), the Projects of Hunan Provincial Science and Technology Department (Nos. 2011GK3115, 2011GK3119), the Project of Changsha Municipal Science and Technology Bureau (No. K1104023-21), and Scientifical Research Foundation of Hunan Provincial Education Department (No. 10C0384).