A linear tetranuclear Ni(II) acyl hydrazone Schiff base complex: preparation, crystal structure and catalytic application
LiWang,JindiWu,XiaolongSu,JianHuang,PengZhang,SaidiZhao,BiyunSu,BenhuaXu
Abstract
A novel linear tetranuclear Ni(II) complex Ni4L2 {[Ni4L2(H2O)3CH3OH]·CH3OH·2CH3CN·2H2O} was constructed by employing a well-tailored compartmental ligand H4L = (2E,N'E)-N'-(1-(3-((E)-2-hydroxy-3-methoxybenzylideneamino)-2-hydroxyphenyl)ethylidene)-2 -(hydroxyimino)propanehydrazideas with equal equivalent NiCl2·6H2O and NaOH via solvothermal reaction. The complex was well characterized by X-ray crystallography, elemental analysis, infrared emission spectra, UV–visible absorption spectra and thermogravimetry. The crystal structure shows that four nickel ions coordinate with two ligands to form a unique linear structure of Ni4L2. Besides, Ni4L2 act as a catalyst showed good catalytic activity for polymerization of methyl methacrylate (MMA) to obtain PMMA under mild condition.Graphical abstract
