Preyssler-type polyoxometalates, smallest POM with internal cavity: Synthesis, structure and function

A Palladium-Containing Polyoxotungstate with Anisotropic Proton Conductivity

“…Due to their well-defined single-crystal structures, tunable chemical compositions, and reversible redox activity, POMs have attracted widespread attention in various fields such as catalysis, , sensing, energy storage, medicine, , ion exchange, and proton conductivity, etc. To date, seven classical POM structures have been reported, including Keggin, Dawson, Lindqvist, Anderson, Silverton, Waugh, and Strandberg types. , Heteropolyoxometalates (HPOMs) can serve as inorganic polydentate ligands to further stabilize other metal ions, including transition metal ions, , and even noble metals like palladium (Pd), to construct novel structures . Among them, due to the high price of noble metals, high chemical inertia, and easy hydrolysis, Pd-containing HPOMs are relatively scarce.…”