The Palladium(II)‐Substituted, Lone Pair Containing Tungstoarsenates(III) [Na₂(H₂O)₂PdWO(H₂O)(α‐AsW₉O₃₃)₂]^10– and [Cs₂Na(H₂O)₈Pd₃(α‐AsW₉O₃₃)₂]^9–

Organoantimony(III)‐Containing Tungstoarsenates(III): From Controlled Assembly to Biological Activity

“…The 183 WN MR spectrumo fp olyanion 1 showedt he anticipated 10 peaks between d = À80 ppm and À220 ppm (at d = À84.0, À95.7, À99.6, À104.0, À104.3, À138.0, À142.2, À144.3, À175.6,a nd À219.4 ppm;s ee Figure4 and the Supporting Information, Figure S3). The relative peak intensities of 2:2:2:2:2:2:2:2:2:1a re fully consistentw ith the C s symmetry of polyanion 1,w hich has ah orizontal mirror plane, relating the two Kegginu nits (see the Supporting Information, Figure S10 a [17] showed the same structural motif, albeit with low solution stability.Hence, polyanion 1 represents the first example of such an asymmetric sandwich-type POM structure type that is stable in solution.…”

“…Polyanion 3 represents at ypical HervØ sandwich-type structure,a sp reviously found for other 3d transition-metal derivatives [12] In 3,t he coordination sphere of the three Sb III centers is completedb yf oure quatorial oxodonors (two of which are corner-shared {WO 6 }o ctahedra from each sandwiching subunit) and one phenyl group to give as lightly distorted square-pyramidal structure. The SbÀOb ond lengths are regular and range from 2.186 (17) to 2.223 (16) . Hence, the three Sb III centers are equivalent and are arranged in an idealized equilateral-triangularf ashion along the belt (Sb···Sb distance % 4.1 ) with their lone pairs of electrons pointingi nside the cavity (Figure 3b).…”

Synthesis and Crystal Structure of the Palladium(IV) Polyoxomolybdate, K0.75Na3.75[PdMo6O24H3.5]·17H2O

“…This is in agreement with the formula given above by Gibbs , except for substitution of Pd II for Pt II and the water content. Later reports include [Cs 2 Na(H 2 O) 10 Pd 3 (α‐Sb III W 9 O 33 ) 2 ] 9– 22, both [Na 2 (H 2 O) 2 PdWO(H 2 O)(α‐As III W 9 O 33 ) 2 ] 10– and [Cs 2 Na(H 2 O) 8 Pd 3 (α‐As III W 9 O 33 ) 2 ] 9– 23, and the novel heteropolyoxopalladate [Pd 13 As 8 O 34 (OH) 6 ] 8– 24.…”

Hydrothermal Synthesis and Structural Characterization of the High‐Valent Ruthenium‐Containing Polyoxoanion [{PW11O39}2{(HO)RuIV–O–RuIV(OH)}]10–

“…[4][5][6] In particular, the past decade has witnessed the growing interest for the incorporation of noble-metal cations into POMs. [7][8][9][10][11][12][13][14] Among the platinum metals, ruthenium has probably been the most studied, [15][16][17][18][19][20][21][22][23][24][25][26][27][28] since it offers access to the most versatile chemistry, based on a wide range of oxidation states and chemical environments. However, despite the growing number of reported Ru-containing POMs, there is a lack of suitable synthesis precursors and reliable procedures.…”