The crystal structure of the known compounds Ln 5 Re 2 O 12 (Ln = Y, Gd, DyΒ±Lu) and the new isotypic terbium rhenate Tb 5 Re 2 O 12 was determined from X-ray data of a twinned crystal of Ho 5 Re 2 O 12 : B2/m, a = 1236.5(4) pm, b = 748.2(2) pm, c = 563.8(1) pm, c = 107.73(3)Β°, Z = 2, R = 0.034 for 3
Preparation and Crystal Structure of Re3O10
β Scribed by Thomas Hartmann; Helmut Ehrenberg; Gerhard Miehe; Thorsten Buhrmester; Gernot Wltschek; Jean Galy; Hartmut Fuess
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 306 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0022-4596
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β¦ Synopsis
Trirheniumdecaoxide, Re 3 O 10 , was obtained by the reaction of ReO 2 and ReO 3 in an arc-melting furnace. X-ray powder di4raction revealed a tetragonal structure with space group I4 m2 and lattice constants a β«Ψβ¬ 5.171(1) and c β«Ψβ¬ 13.371(6) A > . The crystal structure is built up by layers of corner-sharing [ReO 5 ] square pyramids perpendicular to [001] with the apical oxygen pointing up and down alternatingly. These layers are interconnected by disordered [ReO 6 ] octahedra. Early reports on Re 2 O 5 are reviewed in the light of our results.
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The crystal structure of Ba 4 Ru 3 O 10 has been determined by single-crystal X-ray di4raction at room pressure. From re5nements to R β«Ψβ¬ 0.0203 at room temperature and ambient pressure, the material is orthorhombic with space group Cmca (space group No. 64) and has lattice parameters of a β«Ψβ¬ 5.776