Tuning the electronic structure of organic-inorganic hybrid polyoxometalates: The crucial role of the covalent linkage

摘要

The covalent organofunctionalization of polyoxometalates (POMs) has been widely used to both control and enhance their redox properties, particularly for applications in catalysis, energy storage, optics and molecular magnetism. The design of such systems typically involves careful selection of both inorganic and organic components. Here we draw particular attention to how the choice of covalent linker unit determines the degree of electronic conjugation, the stoichiometry and geometry of the hybrid system. Broadly covering six functionalization strategies employing alkoxides, imides, tin, germanium, silicon and phosphorus-based linker units, this review highlights the profound role that the POM-anchoring method plays in determining the overall electronic properties of the hybrid material. (C) 2018 Elsevier Ltd. All rights reserved.