Octahedron-shaped three-shell Ln₁₄-substituted polyoxotungstogermanates encapsulating a W₄O₁₅ cluster: luminescence and frequency dependent magnetic properties

Abstract

The octahedron-shaped three-shell structure of the [(Ln14(H2O)W4(OH)O14)(WO4)4(GeW10O38)6]43− polyanion contains a W4 tetrahedron, a Ln14W4 tetrahedron and a Ge6W60 octahedron.

Ring-Shaped Polyoxometalate Built by {Mn 4 PW 9 } and PO 4 Units for Efficient Visible-Light-Driven Hydrogen Evolution

“…Polyoxometalates (POMs) have attracted considerable research interest due to their structural diversity and potential applications in medicine, catalysis, materials science, photochemistry, molecular magnetism, and so forth. [1][2][3][4][5][6][7] The versatile lacunary POM fragments generated by removing one or more skeletal MO 6 groups can serve as multidentate O-donor inorganic ligands to construct mono-or multinuclear transition-metal-substituted polyoxometalates (TMSPs). [8][9][10][11][12][13][14][15] Currently, the design and preparation of highnuclearity TMSPs remain one of the most interesting topics in synthetic chemistry.…”

Crystal structure of tetrakis(1H-benzo[d]imidazol-3-ium) bis(μ5-phenylphosphonato)-pentakis(μ2-oxido)-decaoxo-penta-molybdenum dihydrate, C40H42Mo5N8O23P2

“…Metal-organic frameworks (MOFs) containing polyoxometalates have caught the increasing attention of researchers due to their novel structural characteristics and applications in catalysis [5], magnetism [6], antibacterial drugs [7], and so on. The title compound is synthesized under hydrothermal condition and its asymmetric unit contains a Strandberg-type anion, four protonated-benzimidazole counter cations and two water molecules (see the Figure).…”

Preparations, Structures and Luminescence Properties of Penta‐rare‐earth Incorporated Tetravacant Dawson Selenotungstates and Their Ho3+/Tm3+ Co‐doped Derivatives

“…On one hand, RE ions generally have the high coordination numbers, flexible coordination modes and strong oxophilicity and can behave as powerful capabilities to connect ST fragments into large aggregates –. For instance, in 2013, Su and his co‐workers firstly isolated two gigantic {W 4 }‐bridging octameric RECSTs [{(SeO 3 ) W 10 O 34 } 8 {Ce 8 (H 2 O) 20 }(WO 2 ) 4 (W 4 O 12 )] 48− and [{(SeO 3 )W 10 O 34 } 8 {Ce 8 (H 2 O) 20 }(WO 2 ) 4 {(W 4 O 6 )Ce 4 (H 2 O) 14 (SeO 3 ) 4 (NO 3 ) 2 }] 34− .…”