Journal
INORGANIC CHEMISTRY FRONTIERS
Volume 10, Issue 19, Pages 5782-5788Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3qi01268a
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In this study, a new molybdovanadate cluster modified by bisphosphonate (BP) ligands was successfully synthesized, providing a new basic building unit for the preparation of polyoxometalates. By comparing the catalytic activity of the V-doped molybdovanadate cluster with other clusters without V=O in an organic model reaction, the significance of the V-replaced model containing V=O was confirmed.
The development of a library of basic building units with distinct compositional and structural characteristics for the preparation of polyoxometalates remains a challenging and attractive endeavor. Herein, the first molybdovanadate cluster (1) modified by bisphosphonate (BP) ligands in a new [(MoVO4)-V-V-O-IV] building unit is successfully synthesized based on one V substituting for one Mo in the classical [(Mo2O4)-O-V] building unit. To compare the catalytic oxidation activity of the V-doped molybdovanadate cluster to that of other molybdovanadate clusters without V=O in an organic model reaction, a molybdovanadate cluster (2) free of V=O was prepared and using the atomically precise 1 and 2 as catalysts confirms the significance of the V-replaced model containing V=O. This work provides an insight into the assembly and catalytic activity site design of Mo-V clusters and enriches the basic building units of the polyoxomolybdate (POMos)-BP family.
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