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Original Articles

Hydrothermal syntheses and characterizations of two compounds assembled from tungstates and bpy (bpy = 4,4′-bipyridine)

, , , , , , & show all
Pages 426-434 | Received 04 Jun 2009, Accepted 02 Sep 2009, Published online: 04 Jan 2010
 

Abstract

Two compounds based on polyoxometalates, (4,4′-H2bpy)7(4,4′-Hbpy)[]2[] ·10H2O (1) and (4,4′-H2bpy)6(4,4′-bpy)[]2 · 18H2O (2), have been prepared under hydrothermal conditions and characterized by IR, XPS spectra, TG analyses, and single crystal X-ray diffraction. Both compounds consist of 4,4′-bipyridine units and polyoxometalates: []5− for 1 and []6− for 2. In addition, 1 contains both Keggin-type and disordered Keggin-type anions, while 2 contains a (H2O)10 water cluster.

Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (No. 20571032 and No. 20333070).

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