Oxalate-assisted assembly of two polyoxotantalate supramolecular frameworks with proton conduction properties

An oxalate-assisted strategy was first developed for creating new polyoxotantalates (POTas). With this strategy, two brand-new POTa supramolecular frameworks based on uncommon dimeric POTa secondary building units (SBUs) were constructed and characterized. Interestingly, the oxalate ligand can not only serve as a coordination ligand to form unique POTa SBUs but also act as a key hydrogen bond acceptor to construct supramolecular architectures. Besides, the architectures show outstanding proton conductivity. The strategy opens up new opportunities for developing new POTa materials.

Automated summary

An oxalate-assisted strategy was developed to create new polyoxotantalates (POTas). Two brand-new POTa supramolecular frameworks based on uncommon dimeric POTa secondary building units (SBUs) were constructed and characterized using this strategy. The oxalate ligand served as both a coordination ligand to form unique POTa SBUs and a key hydrogen bond acceptor to construct supramolecular architectures. These architectures exhibited outstanding proton conductivity. This strategy opens up new possibilities for the development of POTa materials.