Synthesis and Crystal Structure of a Dioxovanadium(V) Complex with Schiff Base Derived from 2-[1-(2-Aminocyclohexylimino)ethyl]phenol

Abstract

A new dioxovanadium(V) complex, [VO₂L]₂·2CH₃OH, where L is the deprotonated form of 2-[1-(2-aminocyclohexylimino) ethyl]phenol, has been synthesized and characterized by I.R. spectra and single crystal X-ray diffraction. The compound consists of a centrosymmetric dinuclear dioxovanadium complex molecule and two methanol molecules of crystallization. Each V atom in the complex is six-coordinated through three bonds to oxo groups and through bonds to the tridentate Schiff base ligand, forming an octahedral geometry. The V[mdot][mdot][mdot]V distance is 3.188(2) Å. In the crystal structure, the dioxovanadium complex molecules are linked with the methanol molecules through intermolecular N − H[mdot][mdot][mdot]O and O−H[mdot][mdot][mdot]O hydrogen bonds, forming chains running along the b axis.

Keywords:

• crystal structure
• Schiff base
• synthesis
• vanadium complex

This work was financially supported by the National Science Foundation of China (Project No. 20901036).