The synthesis and structural characterization of the new ternary nitrides: Ca4TiN4 and Ca5NbN5
β Scribed by Janet L. Hunting; Marta M. Szymanski; Philip E. Johnson; C. Brenhin Kellar; Francis J. DiSalvo
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 745 KB
- Volume
- 180
- Category
- Article
- ISSN
- 0022-4596
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π SIMILAR VOLUMES
Ca 4Β±x Ni x IrO 6 (x = 0.25, 0.5) crystallizes with trigonal (rhombohedral) symmetry in the space group R3c, Z = 6, for Ca 3.75 Ni 0.25 IrO 6 a = 9.3013(1) A Γ , c = 11.1554(1) A Γ ; for Ca 3.5 Ni 0.5 IrO 6 a = 9.2723(1) A Γ , c = 11.0825(1) A Γ . Ca 3.75 Ni 0.25 IrO 6 and Ca 3.5 Ni 0.5 IrO 6 are is
The crystal structures of two calcium aluminogallates have been investigated by single-crystal X-ray di4raction methods. Ca 2 AlGaO 5 is a quenched high-pressure phase prepared at 12503C and 2.5 GPa. The compound belongs to the brownmillerite structure type (space group I2mb, a β«Ψβ¬ 5.2823(6) A s , b