Synthesis, crystal structure and infrared study of LiEr(PO3)4
✍ Scribed by Emna Ben Zarkouna; Mokhtar Férid; Ahmed Driss
- Book ID
- 113785575
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 342 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0025-5408
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## Abstract The __catena__-metaphosphates of tetravalent cerium and tetravalent uranium were obtained as phase pure crystalline powders by reaction of the respective dioxides with phosphoric acid at 500 °C. Ce(PO~3~)~4~ and U(PO~3~)~4~ crystallise in space group __C__2/__c__ (__Z__ = 16, __a__ ~Ce~
The low-temperature form of K 3 Sm(PO 4 ) 2 crystallizes in the glaserite type. The Raman and infrared spectra have been investigated: they are consistent with the proposed space monoclinic system [a = 7.4347(5) A ˚, b = 5.6270(5) A ˚, c = 9.4919(5) A ˚, β = 90.870(6)°, Z = 2, space group P2 1 /m].