Turn Helical Motifs from Pair to Single Entangled Double Helixes in a Cobalt–Vanadate System via Introduction of a V-Shaped Ligand

Recent advances in oxidative catalytic applications of polyoxovanadate-based inorganic-organic hybrids

Polyoxovanadates (POVs) have received widespread attention in catalytic applications due to their various structures and remarkable redox properties. By introducing a second transition metal, POV-based inorganic-organic hybrid (POVH) catalysts show increasing stability and more catalytic active sites compared with pure POVs. In this perspective article, POVH materials as oxidative catalysts have been classified into two main categories according to the interactions between transition metal-complex units and POV clusters: (i) hybrids with metal-organic units act as isolated cations and (ii) hybrids with an organic ligand coordinate to the second transition metal, which is further linked to a POV cluster via oxygen bridges directly or indirectly to give zero-, one-, two- or three-dimensional supramolecular structures. The oxidative conversion of organic compounds, including thiophene derivatives, thioethers, alkanes, alcohols, and alkenes, and oxidative detoxification of a sulfur mustard simulant or degradation of lignin, along with the oxidative photo/electrocatalytic transformation of organic compounds catalyzed by POVH materials, are discussed in detail. Furthermore, the challenges and prospects toward the development of POVH catalysts are explored briefly from our perspectives.

Magnetic and luminescence properties of an inorganic 3D nickel–vanadium bimetallic framework

Magnetic and luminescence properties of the first nickel–vanadium inorganic 3D framework with a pair of entangled double helices.

A 3D cadmium–vanadium bimetallic framework with luminescence properties

Luminescent properties of a novel cadmium–vanadium bimetallic 3D framework possessing a pillared-layer.

Self-assembly of polyoxometalate-based hybrid aggregates: from a monomer to dimers by changing the pH value of reaction systems

This work is the first example of the self-assembly of polyoxometalate-based hybrid aggregates by changing the pH value of reaction systems.

“Pinwheel” subunit-directed polyoxometalate-based hybrid compound [Cu(bimb)2]2[β-Mo8O26] with both helixes and chiral layers

An unprecedented hybrid octamolybdate-based compound with both chiral and helical structure, consisting of a pair of enantiomorphous chiral “pinwheel” subunits, has been synthesized and its photocatalytic properties have been investigated.

Asymmetric catalytic sulfoxidation by a novel VIV8 cluster catalyst in the presence of serum albumin: a simple and green oxidation system

Enantioselective oxidation of a series of alkyl aryl sulfides catalyzed by a novel VIV8 cluster is tested in an aqueous medium in the presence of serum albumin. The procedure is simple, environmentally friendly, selective, and highly reactive.

A new vanadium sulfate with ferrimagnetic and NLO properties constructed from novel discrete umbrella-like [VV(μ3-O)4VIV4O5(SO4)4(en)]5− anions

A new umbrella-like vanadium sulfate shows significant zero field splitting and strong two photon absorption.

Tuning the topology structures of polymolybdate-based hybrids from interpenetrated framework to interdigitated architecture via changing polymolybdate clusters

Three distinct hybrids were synthesized by modulating polyoxomolybdates, which suggests that both the size and the charge of polyoxometalates play a key role in the assembling.

The coexistence of interconnected and interweaved double helices in an octamolybdate-based compound: synthesis, structure, and photocatalytic properties

Assembly and photocatalytic properties of an unprecedented helical compound based on polyoxometalates, with the coexistence of both interconnected and interweaved double helices, are reported.