Classical/Non-classical Polyoxometalate Hybrids.

Two polyanions [SeI V2 PdII4 WVI14 O56 H]11- and [SeI V4 PdII4 WVI28 O108 H12 ]12- are the first hybrid polyoxometalates in which classical (Group 5/6 metal based) and non-classical (late transition-metal based) polyoxometalate units are joined. Requiring no supporting groups, this co-condensation of polyoxotungstate and isopolyoxopalladate constituents also provides a logical link between POM-PdII coordination complexes and the young subclass of polyoxopalladates. Solid-state, solution, and gas-phase studies suggest interesting specific reactivities for these hybrids and point to several potential derivatives and functionalization strategies.