Xin-Fang Wang, Jie Cao, Kun-Lin Huang, Yan-Qing Xu, Ying-Nan Chi and Chang-Wen Hu 3D Coordination Polymer of [HW7O24]5– Stabilized by a Copper(II) Complex and Sodium Cations: Structure, Solid-State Stability, and Aqueous Solution Behavior European Journal of Inorganic Chemistry 2013
Compound 1, the first example of a heptatungstate polymer, has been synthesized and exhibits good solid-state stability at room temperature. However, dissociation of [HW7O24]5– to [W6O19]2– in aqueous solution was observed by ESI-MS. This suggests that the coordination bonds around [HW7O24]5– play an important role in the isolation and stabilization of the heptatungstate polyanion.
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