Samarium pentaphosphide
Chemical compound
From Wikipedia, the free encyclopedia
Samarium pentaphosphide is a binary inorganic compound of samarium metal and phosphorus with the chemical formula SmP5.[2][3]
| Identifiers | |
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3D model (JSmol) |
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| Properties | |
| P5Sm | |
| Molar mass | 305.23 g·mol−1 |
| Appearance | crystals |
| Density | 3.99 g/cm3[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
Samarium pentaphosphide can be prepared by heating stoichiometric amounts of samarium and phosphorus at 700 °C:
- 4 Sm + 5 P4 → 4 SmP5
Properties
Samarium pentaphosphide forms crystals of monoclinic crystal system, spatial group P121/m1 or P21.[4][5] It decomposes at 700 °C.