Self-Assembly in Polyoxometalate and Metal Coordination-Based Systems: Synthetic Approaches and Developments

Abstract

Abstract:Utilizing new experimental approaches and gradual understanding of the underlying chemical processes has led to advances in the self-assembly of inorganic and metal-organic compounds at a very fast pace over the last decades. Exploitation of unveiled information originating from initial experimental observations has sparked the development of new families of compounds with unique structural characteristics and functionalities. The main source of inspiration for numerous research groups originated from the implementation of the design element along with the discovery of new chemical components which can self-assemble into complex structures with wide range of sizes, topologies and functionalities. Not only do self-assembled inorganic and metal-organic chemical systems belong to families of compounds with configurable structures, but also have a vast array of physical properties which reflect the chemical information stored in the various "modular" molecular subunits. The purpose of this short review article is not the exhaustive discussion of the broad field of inorganic and metal-organic chemical systems, but the discussion of some representative examples from each category which demonstrate the implementation of new synthetic approaches and design principles.

Mechanism for Redox Exfoliation of Layered Transition Metal Dichalcogenides

“…Molecular metal oxide precursors (MOPs), i.e., orthometalates, nominally consist of Group V or VI soluble oxyanion clusters (e.g., MoO 4 –2 , VO 3 –4 , WO 4 –2 ). − The solution structure and assembly of these clusters are complex and dynamic. − In general, MOPs condense via olation to form M–O–M linkages. The resulting soluble polyatomic, 3-dimensional, anionic frameworks are generally referred to as polyoxometalates (POMs).…”

An integrated giant polyoxometalate complex for photothermally enhanced catalytic oxidation

“…Although the {Mo 154 } cluster was pointed out to have unusual potentials (41)(42)(43), the detailed applications are still under development due to the unsatisfied stability. A rapid elimination of coordination of water molecules made the {Mo 154 } cluster unstable.…”

Polyoxometalates as components of supramolecular assemblies

“…This is despite the obvious fact that the negatively charged POMs provide a vast platform for the investigation of their electrostatic interactions with a large variety of cationic species. The recent development of straightforward preparation routes to hybrid materials bearing POM units through supramolecular contacts prompted experimentalists in many scientific fields to take a closer look at the properties and reactivity of these molecular nanoassemblies 14. Their potential for application in the fields of catalysis,19 biochemistry,20 energy storage21 and materials science and technology22–24 has been extensively explored.…”