A structural study of a nonstoichiometric niobium-zirconium oxyfluoride with the ReO3 type structure
β Scribed by M. Poulain; J. Lucas; R.J.D. Tilley
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 568 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0022-4596
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π SIMILAR VOLUMES
A second lanthanum ruthenium oxide with the formula La 3 RuO 7 is reported. This compound, -La 3 RuO 7 , crystallizes in the P2 1 /c space group with a unit cell of a β«Ψβ¬ 8.8388(3) A > , b β«Ψβ¬ 5.6960(1) A > , c β«Ψβ¬ 12.5830(3) A > , and β«Ψβ¬ 104.729(1)3, as re-5ned from powder neutron di4raction data.
Powder samples of NbOF 3 und TaOF 3 were prepared by heating mixtures of NbO 2 F and NbF 5 or TaO 2 F and TaF 5 , respectively, in the corresponding stoichiometric ratio in platinum crucibles under argon atmosphere (180Οͺ220Β°C). Both oxide fluorides are coulourless with a slight greyish tinge. They a