Synthesis and crystal structures of La3MgBi5 and LaLiBi2
β Scribed by Da-Chun Pan; Zhong-Ming Sun; Jiang-Gao Mao
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 251 KB
- Volume
- 179
- Category
- Article
- ISSN
- 0022-4596
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The rare earth-transition metal ternary nitride La 3 Cr 2 N 6 was synthesized from the elements and an excess of sodium and gallium at 900 β’ C in a sealed niobium tube. This compound crystallizes in the tetragonal space group I4/mmm (No. 139) with a = 3.8525(5) Γ and c = 20.508(4) Γ . It is isostruct
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Synthetic La 2 Cu(SeO 3 ) 4 is built up from infinite anionic sheets of square-planar CuO 4 and pyramidal SeO 3 groups, connected ia Cu-O-Se bonds. Ten-coordinate La III species and a second selenite group complete the structure. La 2 Cu(SeO ) 4 is isostructural with Bi 2 Cu(SeO 3 ) 4 -II. Crystal d