Two organic–inorganic hybrid compounds constructed from 12-tungstovanadate and bipyridine

Abstract

Two rare 12-tungstovanadate-bipyridine inorganic–organic hybrid compounds, [VW₁₂O₄₀] · 2(4,4′-H₂bipy) · 2H₂O (1) and [VW₁₂O₄₀] · 4(2,2′-Hbipy) (2), have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction and IR analysis. In 1, a 2-D supramolecular architecture is formed by hydrogen-bonding between [VW₁₂O₄₀]⁴⁻ and bipy. Compound 1 shows good activity for photocatalytic reduction of rhodamine B in a liquid–solid system. The electrochemical and electrocatalytic properties of 2-bulk carbon paste electrode modified with 2 were investigated by cyclic voltammetry.

Keywords:

• Supramolecular architectures
• Polyoxotungstates
• Hydrothermal synthesis
• Catalytic activities

Acknowledgements

This project was financially supported by the National Natural Science Foundation of China (No. 20771024) and the Natural Science Foundation of Fujian Province (No. 2008J0142).