Cation-Directed Synthetic Strategy Using 4f Tungstoantimonates as Nonlacunary Precursors for the Generation of 3d–4f Clusters

Abstract

The first synthetic pathway using a series of four nonlacunary 4fheterometal-substituted polyoxotungstate clusters Na 21 [(Ln(H

Defect {(WVIO7)WVI4} and Full {(WVIO7)WVI5} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates

“…Hence, a step-by-step protocol based on the key parameters determined for the one-pot synthesis of {Bi 3 W 43 } using the Krebs archetype K 12 [Sb 2 W 22 O 74 (OH) 2 ]·27H 2 O {Sb 2 W 22 } ( 11 ) as a nonlacunary precursor 14 was developed for the synthesis of {Sb 3 W 43 } . The synthesis of {Sb 3 W 43 } starts with the preparation of the literature-known nonlacunary Krebs-type precursor {Sb 2 W 22 } , 11 which was chosen based on its W VI /Sb III ratio of 11 ( Scheme 1 ).…”

Gd3 Triangles in a Polyoxometalate Matrix: Tuning Molecular Magnetocaloric Effects in {Gd30M8} Polyoxometalate/Cluster Hybrids Through Variation of M2+

“…[1][2][3] Among these, POM/ coordination cluster (CC) hybrids are becoming increasingly well-established with examples combining POMs with various 3d and/or rare-earth ions, the majority of the latter involving diamagnetic species such as Y III and La III . [4][5][6][7][8][9][10][11] In a class of their own are the highly symmetric spherical Keplerate systems. These have received much attention not only because of their aesthetically beautiful structures but also because of their interesting properties.…”

Synthesis and characterization of the Anderson–Evans tungstoantimonate [Na5(H2O)18{(HOCH2)2CHNH3}2][SbW6O24]

“…In recent decades, some unsubstituted tungstoantimonates, which have only one heteroion, Sb III/V , have been synthesized and structurally characterized (Table 1), but the majority of Sb-containing polyoxotungstates (POTs) contain additional heteroions, such as 3d or 4f metals (Tanuhadi et al, 2018(Tanuhadi et al, , 2020 (Naruke & Yamase, 1992). The high luminescence yield of [Sb V W VI 6 -O 24 ] 7À is attractive for potential photochemical applications in the future.…”