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The original version of the article unfortunately contained translation errors throughout the text. Hence the corrected Obituary is published in this erratum.

Two new tungstoantimonates Na4H2[{Co(H2O)3}2Co(H2O)2W(H2O)2 (B-β-SbW9O33)2]·33H2O (1) and H4[Mn2(H2O)8Mn3.5(H2O)7W0.5(H2O)(B-β-SbW9O33)2]·20H2O (2) have been obtained by the routine synthetic reactions in the aqueous solutions and characterized by elemental analysis, IR, TG analysis. Compound 1 is built from the sandwich-type polyoxoanions [{Co(H2O)3}2Co(H2O)2W(H2O)2(B-β-SbW9O33)2]6−, linked by Na+ cations to construct a 1-D chain-like structure. Compound 2 shows an interesting 2-D structure built up from sandwich-type anions [Mn3.5(H2O)7W0.5(H2O)(B-β-SbW9O33)2]8− linked by additional Mn2+ ions, which represents the first example of pure inorganic 2-D structure based on the Mn-containing sandwich-type polytungstoantimonate clusters. The electrochemical and photochemical catalysis activities of compounds 1 and 2 have also been investigated.

A new molybdophosphate (NH4)8{Mo 2 V O4[(Mo 2 VI O6)CH3C(O)(PO3)2]2}·14H2O (1), has been synthesized by the reaction of {Mo 2 V O4(H2O)6}2+ fragments with 1-hydroxyethylidenediphosphonate (hedp HOC(CH3)(PO3H2)2), and it is characterized by 31P NMR, IR, UV, element analysis, TG and single-crystal X-ray analysis. The structure analysis reveals that the polyoxoanion can be described as two {(Mo 2 VI O6)(CH3C(O)(PO3)2} units connected by a {Mo 2 V O4}2+ moiety. In the structure, the six Mo atoms are arranged into a new “W-shaped” structure, which represents a new kind of molybdophosphate.

Two new chain like B-Anderson type polyoxomolybdates based hybrids {Na[(CH3)3N(CH2)2OH]2}[Al(OH)6Mo6O18]·2(NH2CONH2)·6H2O (1) and {Na[(CH3)3N(CH2)2OH]2}[Cr(OH)6Mo6O18]·2(NH2CONH2)·6H2O (2) were synthesized in choline chloride/urea eutectic mixture and characterized by element analysis, IR, UV–vis, TG, single-crystal X-ray analysis, and power X-ray diffraction. Through the linkage [Na(H2O)2(NH2CONH2)2]+, the [X(OH)6Mo6O18]3− (X = Al, Cr) units are arranged into a chain. Considering hydrogen bonding interactions between the chains, compound 1 and 2 are all well-arranged into 3-D supermolecular assembly. The structure is first obtained in the choline chloride/urea eutectic mixture.

Two new one-dimensional chain-like compounds, K4Na4[Mn2(H2O)8Mn4(H2O)2(GeW9O34)2] · 20.5H2O (1) and K2Na4Cu2(H2O)12[Cu(H2O)2Cu4(H2O)2(SiW9O34)2] · 15H2O (2), constructed from the sandwich-type clusters, have been obtained by the routine synthetic reactions in aqueous solutions, and their structures were determined by X-ray single crystal diffraction analysis. The crystal data is following: for 1, space group, monoclinic, P 21/n, a = 16.693(3) A, b = 14.935(3) A, c = 20.090(4) A, β = 92.23(3)°, V = 5004.7(17) A3, Z = 2; For 2, space group, triclinic, P −1, a = 11.744(2) A, b = 13.415(3) A, c = 17.609(4) A, α = 73.08(3)°, β = 82.68(3)°, γ = 65.18(3)°, V = 2409.1(8) A3, Z = 1. The crystal structure of 1 shows a 1D ladder-like chain, built up of the sandwich anions [Mn4(H2O)2(GeW9O34)2]12− and the Mn2+ ions. Compound 2 is a polymeric chain, composed of the Cu-substituted sandwich-type anions [Cu4(H2O)2(SiW9O34)2]12− linked by the Cu(H2O)4 clusters. These extended materials based on the sandwich-type polyoxoanions are rarely reported in the POM chemistry.