Vanadium-substituted Keggin-type heteropolyanions have been studied for a wide variety of applications, ranging from catalysis to antiviral/antimicrobial agents. While the V-substituted phosphomolybdates [PVxMo12−xO40](3+x)− well investigated in this context, comparatively little is known about corresponding phosphotungstates [PVxW12-xO40](3+x)−. We succeeded synthesizing sodium salts whole ser...

The main objective of this work was to design an innovative method prepare heterogeneous heteropolyacid catalysts. H3PW12O40 (HPW) modified with tin(II) by two methodologies: a conventional aqueous ion-exchange (CS) and redox solid-state (SS). In both cases, Fourier transform infrared spectroscopy (FTIR) X-ray diffraction (XRD) measurements evidenced that Keggin structure preserved. All materia...

Extended modular frameworks that incorporate inorganic building blocks represent a new field of research where “active sites” can be engineered to respond to guest inclusion. This process can initiate highly specific chemical reactions that switch the overall nature of the framework, and it may even be developed to facilitate directed chemical reactions similar to those found in enzymatic syste...