Praseodymium pentaphosphide is a binary inorganic compound of praseodymium and phosphorus metal with the formula PrP 5 , crystals.
| Praseodymium Pentaphosphide | |
|---|---|
| General | |
| Systematic name | Praseodymium Pentaphosphide |
| Traditional names | Phosphorous Praseodymium |
| Chem. formula | PrP 5 |
| Physical properties | |
| condition | crystals |
| Molar mass | 295.78 g / mol |
| Density | 3.8 g / cm³ |
| Thermal properties | |
| T. decomp. | 697 ° C [1] |
Getting
- Heating of metallic praseodymium and phosphorus in the presence of iodine vapor :
Physical Properties
Praseodymium pentaphosphide forms monoclinic syngony crystals, space group P 2 1 / m , cell parameters a = 0.4938 nm, b = 0.9595 nm, c = 0.5482 nm, β = 103.64 °, Z = 2, structure type of neodymium pentaphosphide NdP 5 [2] [3] .
The compound is formed by a peritectic reaction at a temperature of 697 ° C [1] .
Notes
- ↑ 1 2 State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Engineering, 2001. - T. 3 Book 1. - 972 p. - ISBN 5-217-02843-2 .
- ↑ HG von Schnering, M. Wittmann, K. Peters. Crystal structure of praseodymium pentaphosphide, PrP 5 and of samarium pentaphosphide, SmP 5 // Z. Kristallogr. NCS. - 1998 .-- T. 213 . - S. 461-462 . - DOI : 10.1524 / ncrs.1998.213.14.489 .
- ↑ B. Predel. P-Pr (Phosphorus-Praseodymium) // Landolt-Börnstein - Group IV Physical Chemistry. - 1998 .-- T. 5I . - S. 1-2 . - DOI : 10.1007 / 10542753_2369 .