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β,β-Isomer of Open-Wells–Dawson Polyoxometalate Containing a Tetra-Iron(III) Hydroxide Cluster: [{Fe4(H2O)(OH)5}(β,β-Si2W18O66)]9−
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Inorganics 2016, 4(2), 16; doi:10.3390/inorganics4020016

Synthesis, Structure, and Characterization of In10-Containing Open-Wells–Dawson Polyoxometalate

Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
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Academic Editor: Greta Ricarda Patzke
Received: 12 April 2016 / Revised: 7 May 2016 / Accepted: 10 May 2016 / Published: 17 May 2016
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Abstract

We have successfully synthesized K17{[{KIn2(μ-OH)2}(α,α-Si2W18O66)]2[In6(μ-OH)13(H2O)8]}·35H2O (potassium salt of In10-open), an open-Wells–Dawson polyoxometalate (POM) containing ten indium metal atoms. This novel compound was characterized by X-ray crystallography, 29Si NMR, FTIR, complete elemental analysis, and TG/DTA. X-ray crystallography results for {[{KIn2(μ-OH)2}(α,α-Si2W18O66)]2[In6(μ-OH)13(H2O)8]}17− (In10-open) revealed two open-Wells–Dawson units containing two In3+ ions and a K+ ion, [{KIn2(μ-OH)2}(α,α-Si2W18O66)]11−, connected by an In6-hydroxide cluster moiety, [In6(μ-OH)13(H2O)8]5+. In10-open is the first example of an open-Wells–Dawson POM containing a fifth-period element. Moreover, to the best of our knowledge, it exhibits the highest nuclearity among the indium-containing POMs reported to date. View Full-Text
Keywords: polyoxometalates; open-Wells–Dawson structural polyoxometalate; Indium polyoxometalates; open-Wells–Dawson structural polyoxometalate; Indium
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Matsunaga, S.; Otaki, T.; Inoue, Y.; Mihara, K.; Nomiya, K. Synthesis, Structure, and Characterization of In10-Containing Open-Wells–Dawson Polyoxometalate. Inorganics 2016, 4, 16.

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