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      Isopolyoxometalates of Antimony: Arylstibonic Acids [H₈ (RSb)₁₂O₂₈] and Derived Dodecanuclear Polyoxostibonates [M₂H10−x(RSb)₁₂O₃₀]x−, M = Na or K

      Nicholson, Brian K.; Clark, Christopher J.; Wright, Cody Elvin; Groutso, Tania
      DOI
       10.1021/om1008692
      Link
       pubs.acs.org
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      Citation
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      Nicholson, B.K., Clark, C.J., Wright, C.E. & Groutso, T. (2010). Isopolyoxometalates of Antimony: Arylstibonic Acids [H₈ (RSb)₁₂O₂₈] and Derived Dodecanuclear Polyoxostibonates [M₂H10−x(RSb)₁₂O₃₀]x−, M = Na or K. Organometallics, 29(3), 6518-6526.
      Permanent Research Commons link: https://hdl.handle.net/10289/4960
      Abstract
      Electrospray ionization mass spectrometry shows arylstibonic acids, p-XC₆H₄SbO₃H₂ (X = methyl, nitro, or chloro), and 1-naphthylstibonic acid exist in MeCN as dodecanuclear aggregates [H₈(RSb)₁₂O₂₈]. With KOH or NaOH these form polyoxometalate ions [M₂H₈(RSb)₁₂O₃₀]²⁻ (M = K or Na) with a hexagonal antiprismatic array of the Sb atoms, as shown by X-ray crystallographic structures for three new examples. There is one firmly encapsulated 10-coordinate M⁺ ion within an inorganic 12-crown-6 moiety {Sb₆O₆} in the hexagonal channel and one six-coordinate M⁺.
      Date
      2010
      Type
      Journal Article
      Publisher
      American Chemical Society
      Collections
      • Science and Engineering Papers [3124]
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