An unprecedented dumbbell-shaped pentadeca-nuclear W-Er heterometal cluster stabilizing nanoscale hexameric arsenotungstate aggregate and electrochemical sensing properties of its conductive hybrid film-modified electrode

Organic–inorganic hybrid phosphite-participating S-shaped penta-CeIII-incorporated tellurotungstate as an electrochemical enzymatic hydrogen peroxide sensor for β-d-glucose detection

“…[17][18][19][20][21] In the realm of POMs, heteropolyoxotungstates (HPOTs) are of great importance due to their high structural stability, diverse vacant building blocks and multiple application potentials, and have been extensively used and systematically explored for novel structural design purposes and application considerations. [22][23][24][25] Due to the lower valence state and lone electron pair effect of the subgroup-valence heteroatom Te(IV) with a triangular pyramidal coordination configuration, it has come to be considered an important member to generate lacunary HPOTs, known as tellurotungstates (TTs), which can be further employed to capture lanthanide (Ln) ions to fabricate high-nuclearity Ln-incorporated TTs (HNLITTs). The introduction of the Te(IV) heteroatom can enhance the feasibility of obtaining excellent HNLITTs with amazing structural features.…”

Highly efficient multi-site synergistic catalysis of a polyoxovanadate-based metal–organic framework for benzylic C–H bond oxidation

“…[18][19][20][21] Polyoxometalates (POMs), a class of nanosized anionic clusters formed by the coordination of early transition metals in high oxidation states with oxygen atoms, are well known for their superior catalytic performance in many synthetically useful organic transformations. [22][23][24][25] However, POM catalysts have the disadvantages of dissolution in polar solvents and agglomeration in non-polar solvents, which largely hinder their extensive applications. 26 Assembling POMs into MOFs to obtain POMOFs is a double benet approach that not only overcomes the above shortcomings of POM catalysts but also enhances the stability of MOFs.…”

Two Innovative Fumaric Acid Bridging Lanthanide-Encapsulated Hexameric Selenotungstates Containing Mixed Building Units and Electrochemical Performance for Detecting Mycotoxin

“…HPOMs have developed as a prosperous branch of POMs and become a more flourishing family since the first HPOM [(NH 4 ) 3 PMo 12 O 40 ]·nH 2 O was discovered by Berzelius in 1826 . The presence of heteroatoms can precisely and directly regulate the variation of geometric structures of HPOMs and influence the whole structural stability, that is to say, the structural stability can be improved with the participation of heteroatoms in the fabrication of POMs. − Though abundant achievements have been obtained in the area of HPOMs, most of reported HPOM clusters are constituted by pure inorganic segments (Figure a–e). − In order to increase the innovation and diversity of structures, organic ligands were introduced into the construction of HPOMs to form organic–inorganic hybrid HPOMs (OIHHPOMs). Organic ligands can not only coordinate with metal centers to establish more flexible and varied structures but also regulate the aggregating process of POMs.…”