Two Different Three-Dimensional Uranium-Containing Polymolybdates Based on Zn(II) for the Heterogeneous Catalytic Construction of C–N Bond

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(19), P. 8919 - 8924

Published: May 3, 2024

The introduction of transition metal (TM) ions into polyoxometalates (POMs) cannot only bring about interesting structural diversities but also enable changes in properties. However, TM-containing Silverton-type polyoxomolybdates are still lacking terms diversity and application development. Herein, two Zn(II)-containing {UMo12O42}-based polyoxomolybdates, H1.89Na4.11(H2O)9Zn[UMo12O42]·4.5H2O (Zn-1) H1.8Na4.2(H2O)12Zn[UMo12O42] (Zn-2) were hydrothermally synthesized, demonstrating a practical strategy to assembly POMs. Zn-1 is proven be an excellent recyclable heterogeneous catalyst cross-dehydrogenation coupling 1,4-naphthoquinones with amines reactions, series 2-amino-1,4-naphthoquinones potential medicinal value have been constructed.

Language: Английский

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Aminobenzoic Acid Covalently Modified Polyoxotungstates Based on {XW₆} Clusters with Proton Conductivity Property

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Three cases of aminobenzoic acid hybrid polyoxotungstates, Na3(H3O)2[(HPW6O21) (O2CC6H4NH2)3]·7H2O (1), K2(H3O)4[(AsW6O21)(O2CC6H4NH2)3]·4H2O (2), and [(H2N(CH3)2]3Na2(H3O)[(SbW6O21) (3), were successfully synthesized. This is the first report successful assembly hexanuclear {XW6} (X = HPIII, AsIII, or SbIII) clusters organic carboxylic (para acid) ligands. All three hybrids feature a common unit composed six-membered {WO6} octahedral ring capped by one {XO3} trigonal pyramid. Furthermore, these possess an extensive three-dimensional network hydrogen bonds, which not only provide high thermal stability but also contribute to excellent proton conductive performances. Simultaneously, based on Hirshfeld partition analysis, combined with interaction between POMs water molecules, transport mechanisms highlighted.

Language: Английский

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Polyoxometalates for the decontamination of chemical warfare agents: From structure and composition regulation to performance enhancement

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 517, P. 215998 - 215998

Published: June 19, 2024

Language: Английский

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Exploring Electron Transfer Mechanism in Synergistic Interactional Reduced Polyoxometalate-Based Cu(I)–Organic Framework for Photocatalytic Removal of U(VI)

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(17), P. 7876 - 7885

Published: April 12, 2024

Photocatalytic reduction of U(VI) is a promising method for removing uranium containing pollutants. However, using polyoxometalate-based metal-organic frameworks (POMOFs) photoreduction rare, and the relevant charge transfer pathway also not yet clear. In this article, we demonstrate highly efficient strategy revealed clearly electron with 99% removal efficiency by novel POMOF, [Cu(4,4'-bipy)]

Language: Английский

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{SeO₂(OH)} Bridging Lanthanide-Containing Antimono-Seleno-Tungstates

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(21), P. 9899 - 9906

Published: May 14, 2024

A series of new trigonal pyramidal {SeO2(OH)} bridging lanthanide-containing antimono-seleno-tungstates [H2N(CH3)2]8Na8Cs4H9[Ln2SeW4O11(OH)(H2O)4(SbW9O33)(SeW9O33)(Se1/2Sb1/2W9O33)]2·32H2O [Ln = Tb (1), Dy (2), Ho (3), Er (4)] have been prepared by the synthetic strategy simultaneously using antimonotungstate precursor and simple material in an acidic aqueous solution structurally characterized single-crystal X-ray diffraction, powder IR spectrometry, thermogravimetric analysis. Their molecular structures contain unprecedented hexameric polyoxoanion [Ln2SeW4O11(OH)(H2O)4(SbW9O33)(SeW9O33)(Se1/2Sb1/2W9O33)]229– constituted two equivalent trimeric subunits Ln2W4O9(H2O)4(SbW9O33)(SeW9O33)(Se1/2Sb1/2W9O33) bridged via μ2-{SeO2(OH)} linkers. Furthermore, catalytic oxidation various aromatic sulfides sulfur mustard simulant 2-chloroethyl ethyl sulfide (CEES) compound 3 as heterogeneous catalyst has investigated, exhibiting high conversion selectivity well good stability recyclability.

Language: Английский

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Cylindrical HP^III-Sb^III-Templated Five-Layer Polyoxotungstate with Conspicuous Photochromism Triggered by UV or Visible Light

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(37), P. 17108 - 17115

Published: Sept. 3, 2024

The heteroanion (HA) component plays an important role in the templating of heteropolyoxometalate (HPA) structures, but polyoxometalates (POMs) formed from two different templates are rarely reported. Herein, we present a five-layer POM [H

Language: Английский

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Ln3+-Bridged 2D Dawson-Type Phosphotungstates with Efficient Hydrolytic Cleavage Activity of a DNA-Model Phosphodiester

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 141845 - 141845

Published: Feb. 1, 2025

Language: Английский

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Four Tartaric Acid-Bridged Tetra-Europium(III)-Containing Antimonotungstate with Catalytic Oxidation of Thioethers/Alcohols

Chinese Journal of Structural Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 100603 - 100603

Published: April 1, 2025

Language: Английский

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2,3-pyrazine dicarboxylate-bridged Ln-based arsenotungstates with luminescent properties

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1310, P. 138366 - 138366

Published: April 15, 2024

Language: Английский

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Mixed Carboxylate Ligands Bridging Tetra-Pr³⁺-Encapsulated Antimonotungstate: Syntheses, Structure, and Catalytic Activity for Imidazoles Synthesis

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(48), P. 22955 - 22961

Published: Nov. 15, 2024

Multinuclear Pr-containing antimonotungstate [Pr

Language: Английский

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