Recent advances in uranium-containing polyoxometalates

Abstract

Uranium-containing polyoxometalates (U-POMs), an important class of actinide cluster compounds, are the products of the assembly of uranium or uranium and POMs. It illustrates the structural beauties and diversities of...

Platonic and Archimedean solids in discrete metal-containing clusters

“…Since the beginning of this century, actinides have also been incorporated in polyoxometalates of transition 37 metals, [177][178][179][180][181] and the first uranium (U) derivative (U 6 O 13 (2,2 0bipyridine) 2 (1,2,4-t Bu 3 C 5 H 2 ) 2 ) with an octahedron [U 6 O 13 ] core was prepared in 2001. 180 Actinide-containing polyoxometalate clusters, which are mainly divided into two parts (U-containing heteropolyoxometalates and U-oxo-clusters), 182 185 ), Keggin-type {U 13 }, 186 and cage-like U-oxo-clusters.…”

“…Since the beginning of this century, actinides have also been incorporated in polyoxometalates of transition metals, 177–181 and the first uranium (U) derivative (U 6 O 13 (2,2′-bipyridine) 2 (1,2,4- t Bu 3 C 5 H 2 ) 2 ) with an octahedron [U 6 O 13 ] core was prepared in 2001. 180 Actinide-containing polyoxometalate clusters, which are mainly divided into two parts (U-containing heteropolyoxometalates and U-oxo-clusters), 182 exhibit versatile and stunning structures, such as tetrameric, hexameric U-containing heteropolyoxometalates (Na 32 [(UO 2 ) 12 O 4 (H 2 O) 12 (P 2 W 15 O 56 ) 4 ], 183 Na 24 [U 6 (OH) 4 O 4 (AsW 9 O 33 ) 4 ], 184 and (NH 4 ) 30 [(UO 2 (H 2 O)) 6 (UO 2 (H 2 O) 6 (AsW 9 O 34 ) 6 ] 185 ), Keggin-type {U 13 }, 186 and cage-like U-oxo-clusters.…”

Immobilization of Brønsted basic hexaniobate on the Lewis acidic zirconia using an emulsion assisted self-assembly strategy for synergistic boosting of nerve agent simulant decontamination

“…Polyoxoniobates (PONbs) are a subfamily of polyoxometalates (POMs) [22][23][24] and both their synthesis chemistry and catalysis chemistry are far behind those of other POM members. [25][26][27][28][29][30][31] Recently, the catalytic activities of PONbs in the decontamination of chemical warfare agents and/or their simulants have been explored. Our investigations show that PONbs can promote the oxidative detoxification of sulfur mustard and VX simulants due to their ability to activate hydrogen peroxide.…”

Uranyl-silicotungstate-containing hybrid building units {α-SiW9} and {γ-SiW10} with excellent catalytic activities in the three-component synthesis of dihydropyrimidin-2(1H)-ones

“…However, the development of actinide-containing POMs may be limited by synthetic methods, and the study still lags far behind 3d/4f-metal-containing POMs comparing the research contents and depth, which includes structure-based research and applications. 10 Actinides that have unique 5f electrons and bigger atomic radii may show more abundant oxidation states and are good members to synthesize POMs. [11][12][13][14][15][16] For these stable actinides, thorium and uranium are most accessible to study, and U-containing heteropolytungstates (U-POWs) are the most explored.…”