Preparation and efficient catalysis for olefins epoxidation of a polyoxovanadate-based hybrid
A new polyoxovanadate compound[Co(pIM)V2O6](1)was hydrothermally synthesized,where pIM stands for 2-(2-pyridyl)imidazole.For its characterizations,an integration of X-ray single crystal diffraction,powder X-ray diffraction,Fourier transform infrared spectra,and elemental analysis was accomplished.The compound exhibited a 2D architecture composed of VO4 tetrahedra and CoO3N2 square pyramids via both edge-and corner-sharing.Considering the excellent catalytic oxidation features of poly oxo vanadate,compound 1 was used as an efficient heterogeneous catalyst for the epoxidation of olefins with H2O2 as an oxidant,and could be reused without consum-ing activity.Besides,the magnetic studies indicated the antiferromagnetic interactions in 1.CCDC:2285966.
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