Preparation and structure of the light rare-earth copper selenides LnCuSe2 (Ln=La, Ce, Pr, Nd, Sm)
β Scribed by Ismail Ijjaali; Kwasi Mitchell; James A. Ibers
- Book ID
- 108194036
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 334 KB
- Volume
- 177
- Category
- Article
- ISSN
- 0022-4596
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π SIMILAR VOLUMES
structure of Cu 4 SiP 8 contains Cu 2 pairs and a three-dimen-The title compounds were prepared in well-crystallized form sionally infinite silicon phosphorus polyanion. In CeSiP 3 from a tin flux and their crystal structure was determined (3) the cerium atoms are coordinated by nine phosphorus from
2 (tetragonal) (2). In the case of Ln Ο Ce, group P3m1, with a and c parameters varying from 3.9442 to Ce 2 (CO 3 ) 3 ΠΈ 8H 2 O was heated at 1273 K. For Ln Ο Eu, 3.7812 A Λand from 8.3609 to 8.2311 A Λ, respectively, as Ln atoms Eu 2 O 3 was calcined at 1023 K because the sample melted change from C