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- W2078760503 abstract "Group 14 and 15 elements (M′ = Pb, As, Sb, Bi), which are known to form corner-shared double cube derivatives [Mo6M′S8(H2O)18]8+ of [Mo3S4(H2O)9]4+, are here shown to react with [M3Se4(H2O)9]4+ (M = Mo, W). Using similar procedures, no corresponding derivatives of [W3S4(H2O)9]4+ are obtained. ICP-AES metal analyses on the [M3Se4(H2O)9]4+ products, together with stoichiometries for oxidation with the CoIII oxidant [Co(dipic)2]−, are consistent with corner-shared double cube formulae [M6M′Se8(H2O)18]8+. UV-Vis spectra are reported as part of the characterisation, and observations are made on the reactivity of the cubes with O2. The X-ray crystal structures of [Mo3Se4(H2O)9](pts)4·10H2O, [W3Se4(H2O)9](pts)4·12H2O and one of the key products [Mo6AsSe8(H2O)18] (pts)8·8H2O have been determined (pts− = p-toluenesulfonate). Whereas differences in reactivity of [Mo3Se4(H2O)9]4+ and [W3Se4(H2O)9]4+ are small, the differences for [Mo3S4(H2O)9]4+ and [W3S4(H2O)9]4+ are much more marked. In the context of heteroatom incorporation the incomplete cube [W3S4(H2O)9]4+ is by far the least reactive of the four trinuclear clusters." @default.
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- W2078760503 date "2001-01-01" @default.
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- W2078760503 title "Formation of Group 14 and 15 heteroatom derivatives of trinuclear [M3Se4(H2O)9]4+ (M = Mo, W) and the decreased reactivity of [W3S4(H2O)9]4+" @default.
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- W2078760503 doi "https://doi.org/10.1039/b101399h" @default.
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