新しいニオブ酸化物の探査と結晶構造

• 熊田 伸弘

  山梨大学工学部附属無機合成研究施設

• 木野村 暢一

  山梨大学工学部附属無機合成研究施設

書誌事項

タイトル別名

• Preparation and crystal structure of new niobium oxides.
• アタラシイ ニオブ サンカブツ ノ タンサ ト ケッショウ コウゾウ

抄録

We review preparations and crystal structures of various kinds of new niobium oxides. Ilmenite-type ANbO₃ (A=Li, Na), which were prepared by low temperature hydrothermal reaction and ion-exchange reaction, are the first examples of ilmenite-type niobium oxides. These niobium oxides are metastable phases and transform into the stable phases at elavated temperatures. A new reduced niobium oxide, Rb_1.51Nb₁₀O₁₇ has a Nb₆O₁₂ cluster characteristic of strongly reduced niobium oxides. Weakly reduced niobium oxides, K₂YNb₅O_15-δ and K₆Nb_10.9O₃₀ have NaNb₆O₁₅F-type and tetragonal tungsten bronze type strcutures, respective-ly. In the A₂O-MO- Nb₂O₅ (A=K, Rb, Cs; M=Mg, Fe) system, two types of compounds K₂M₂Nb₄O₁₃ and A (M, Nb) ₂O₅, which are isostructural with K₂Ti₆O₁₃ and KTiNbO₅ respectively, were obtained.

収録刊行物

• 日本結晶学会誌

  日本結晶学会誌 41 (2), 136-140, 1999

  日本結晶学会

詳細情報

• CRID: 1390001204085764352
• NII論文ID: 10002591639
• NII書誌ID: AN00188364
• DOI: 10.5940/jcrsj.41.136
• ISSN: 18845576
• ISSN: 03694585
• NDL書誌ID: 4732023
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4732023
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可