A new layered vanadate complex with a tunnel structure: [{Cu(mbpy)}₂V₈O₂₁] (mbpy = 4,4′-dimethyl-2,2′-bipyridine)

Abstract

A new vanadate with a tunnel structure [{Cu(mbpy)}₂V₈O₂₁] (1) (mbpy = 4,4′-dimethyl-2,2′-bipyridine) has been synthesized hydrothermally. X-ray crystal analysis reveals that 1 exhibits a layered structure constructed from {V₈O₂₁} _n layers grafted with secondary metal coordination groups of Cu-mbpy. The thermogravimetric analysis and electrochemistry of 1 are also reported.

Keywords:

• Polyoxometalate
• Vanadate
• Layered structure
• Hybrid
• Copper

Acknowledgments

This work was financially supported by the Natural Science Foundation of China (20701011), China Postdoctoral Science Foundation (20070410037 and 20801045), Doctoral Initial Foundation of Hebei Normal University (L2005B13), and the Education Department Foundation of Hebei Province (Z2006436).