Low-valent Mofs
Low-valent Mofs - Related Videos
05:46
Assembly of Porous Monolithic Materials Using a Pickering Emulsion Strategy Stabilized by Metal–Organic Framework (MOF) Particles
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2026
This study successfully uses MIL-96(Al) Metal-Organic Frameworks particles to stabilize Pickering emulsions, which serve as templates to form mechanically robust, hierarchically porous monolithic materials. This method allows scalable MOF shaping while preserving crystal integrity. Tuning formulation is key to controlling pore size, interconnectivity, permeability, and robustness.
07:14
Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
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Cited by 1 •
2023
Here, we describe a protocol for the synthesis of low-valent metal-organic frameworks (LVMOFs) from low-valent metals and multitopic phosphine linkers under air-free conditions. The resulting materials have potential applications as heterogeneous catalyst mimics of low-valent metal-based homogeneous catalysts.
08:25
Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)
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Cited by 1 •
2020
Here, we present a protocol for active site validation of metal-organic framework catalysts by comparing stoichiometric and catalytic carbonyl-ene reactions to find out whether a reaction takes place on the inner or outer surface of metal-organic frameworks.
06:28
Measuring Proton Conductivity in MOF-Based Mixed Matrix Membranes by Electrochemical Impedance Spectroscopy
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2026
This protocol describes a reproducible methodology for the fabrication of sustainable metal-organic framework/polymer mixed-matrix membranes and accurate measurement of their in-plane proton conductivity under variable temperature and humidity using electrochemical impedance spectroscopy, which can be useful for proton exchange membrane fuel cells (PEMFCs).
11:05
Quadruply Metal-Metal Bonded Paddlewheels
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2023
Source: Corey Burns, Tamara M. Powers, Department of Chemistry, Texas A&M University Paddlewheel complexes are a class of compounds comprised of two metal ions (1st, 2nd, or 3rd row transition metals) held in proximity by four bridging ligands (most commonly formamidinates or carboxylates) (Figure 1). Varying the identity of the metal ion and the bridging ligand provides access to large families of paddlewheel complexes. The structure of paddlewheel complexes allows for metal-metal bonding,...
FAQs
Low-valent metal centers make the framework electron-rich, which can alter charge transfer, redox behavior, and conductivity across the porous structure. Their unusual oxidation states provide chemically active sites whose electronic properties are coupled to the surrounding organic linkers. Consequently, researchers can examine how metal-centered electron density affects framework function rather than treating the lattice as only a passive support.
Strong metal-ligand bonding helps keep electron-rich metal centers incorporated into the lattice instead of allowing their oxidation state to change readily during assembly. Solvent choice also matters because the coordination environment must support the desired metal state. Together, ligand strength and solvent control help determine whether the framework forms with the intended electronic and redox characteristics.
Oxidation sensitivity provides a way to probe the connection between framework structure and electronic behavior. Exposure that changes the metal oxidation state can alter electron-rich character and therefore affect charge transfer, redox response, or conductivity. Comparing protected and oxidizing conditions can reveal how chemical stability and electronic function are linked within the framework.
Formation begins by combining selected low-valent metal centers with organic linkers under coordination conditions that preserve the desired oxidation state. A controlled solvent environment supports the required metal-ligand interactions, while oxygen and moisture are excluded during synthesis. These controls help maintain the low-valent centers as the porous, crystalline framework develops.
Handling requires continued exclusion of oxygen or moisture because the low-valent centers are sensitive to oxidation. This protection should extend beyond synthesis to subsequent manipulation and study, preserving the metal oxidation state that gives the framework its distinctive electronic and redox properties. Maintaining those conditions makes comparisons of structure, stability, and function more meaningful.
Low-valent MOFs can be investigated for charge transfer, catalytic transformations, gas adsorption, and tunable conductivity. These uses draw on different consequences of the same framework design: porous architecture supports interactions with gases, while electron-rich metal centers contribute to redox and electronic behavior. The materials therefore connect structural control with both chemical reactivity and measurable functional properties.
In chemistry, these frameworks offer a way to study metal-centered reactivity within an ordered, porous environment. Their organic linkers and coordination conditions do more than hold the structure together: they help stabilize unusual metal states and influence electronic behavior. This makes low-valent MOFs useful for examining how local coordination and extended framework architecture shape redox chemistry.