A new organic–inorganic hybrid based on Mn–salen and decavanadate

Abstract

An organic–inorganic hybrid based on Mn-salen and decavanadate, [NH₄]₂[Mn(salen)(H₂O)₂]₄[V₁₀O₂₈] · 6H₂O (1) (salen = N,N′-ethylene-bis(salicylideneiminate)), has been synthesized by the strategy of secondary building units in mixed methanol–water solution and was structurally characterized by single-crystal X-ray diffraction, elemental analyses, IR, and UV-Vis. The [Mn(salen)(H₂O)₂]⁺ cations and water molecules are located in the interspaces among the polyoxoanions [V₁₀O₂₈]⁶⁻ forming a POM-based supramolecule. Compound 1 is the first example of metal-Schiff-base polyoxovanadates. The photocatalytic analysis, cyclic voltammetry, and electrocatalytic analysis of 1 have been investigated.

Keywords:

• Organic-inorganic hybrid
• Schiff-base
• Salen
• Polyoxometalates
• Decavanadate

Acknowledgments

This work was supported by the National Natural Science Foundation of China (No. 20701005/20701006); the Science and Technology Development Project Foundation of Jilin Province (No. 20060420); the Postdoctoral station Foundation of Ministry of Education (No. 20060200002); the Testing Foundation of Northeast Normal University; the Program for Changjiang Scholars and Innovative Research Team in University; and the Natural Science Foundation of Changchun Normal University.