V-Shaped Polyoxotungstoarsenates Incorporating a Prism-Like Hexa Transition-Metals Center: [M6(H2O)2(AsW9O34)2(AsW6O26)]17-(M〔2+〕=Mn〔2+〕,Co〔2+〕,Zn〔2+〕)♯

• Keisuke Fukaya

• Toshihiro Yamase

書誌事項

タイトル別名

• V Shaped Polyoxotungstoarsenates Incorporating a Prism Like Hexa Transition Metals Center M6 H2O 2 AsW9O34 2 AsW6O26 17 M 2 Mn 2 Co 2 Zn 2

抄録

Hexa transition-metals incorporated polyoxotungstoarsenates, [M6(H2O)2(AsW9O34)2(AsW6O26)]17− (M2+ = Mn2+, Co2+I, Zn2+), have been prepared at pH 7–8 and characterized by elemental analysis, electrochemistry, and X-ray crystallography: Na17[Mn6(H2O)2(AsW9O34)2(AsW6O26)]·41H2O (1), P21/c, a = 17.73(1) Å, b = 22.34(1) Å, c = 35.41(3) Å, β = 95.37(3)°, V = 13963(14) Å3, and Z = 4; Na17[Co6(H2O)2(AsW9O34)2(AsW6O26)]·41H2O (2), P21/c, a = 17.65(1) Å, b = 22.24(1) Å, c = 34.78(2) Å, β = 95.84(2)°, V = 13584(13) Å3, and Z = 4; Na17[Zn6(H2O)2(AsW9O34)2(AsW6O26)]·38H2O (3), P21/c, a = 17.6295(6) Å, b = 22.2992(7) Å, c = 34.927(1) Å, β = 95.695(2)°, V = 13662.8(7) Å3, and Z = 4. The anion of 1–3 consists of two B-α [{M(H2O)}M2(AsW9O34)]3− units joined by a B-type hexa-vacant [AsW6O26]11− fragment, corresponding to a removal of the edge-sharing W3O8 moiety from B-α [AsW9O34]9−, to form a C2v-symmetric V-shaped geometry. Two edge-sharing MO6-octahedral triads (with M···M distances 3.2–3.4 Å) are well-separated with M···M distances of 5.5–8.9 Å. Three successive electrochemically quasi-reversible two-electron MnII/MnIII waves were observed in the cyclic voltammogram of 1. M2+ ion with larger radius causes an elongation of the As···As distances. A single Na+ cation coordinated by three oxygen atoms (two belonging to B-α [AsW9O34]9− and one belonging to B-[AsW6O26]11−) in the crevice of the anion stabilizes the V-shaped structure.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 80 (1), 178-182, 2007

  Tokyo : Chemical Society of Japan

キーワード

• General Chemistry

詳細情報

• CRID: 1521136279875354112
• NII論文ID: 10018708646
• NII書誌ID: AA00580132
• ISSN: 00092673
• ISSN: 13480634
• DOI: 10.1246/bcsj.80.178
• NDL書誌ID: 8603578
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8603578
• Web Site: https://academic.oup.com/bcsj/article-pdf/80/1/178/56267919/bcsj.80.178.pdf
• 本文言語コード: en
• NDL 雑誌分類:
  • ZP1(科学技術--化学・化学工業)
• データソース種別:
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