Pentaneodymium tetrastannide ( triolopentaneodymium ) is a binary inorganic compound of neodymium and tin with the formula Nd 5 Sn 4 , crystals.
| Tetrastannid pentaneodymium | |
|---|---|
| Are common | |
| Systematic name | Tetrastannid pentaneodymium |
| Chem. formula | Nd 5 Sn 4 |
| Rac formula | Sn 4 Nd 5 |
| Physical properties | |
| condition | crystals |
| Molar mass | 1196.04 g / mol |
| Density | 7.2 g / cm³ |
| Thermal properties | |
| T. | 1558 ° C |
| Classification | |
| Reg. CAS number | 11132-42-6 |
Getting
- Fusion of stoichiometric amounts of pure substances:
Physical Properties
Tetrastannid pentaneiodime forms crystals of the rhombic syngony , space group P nma , cell parameters a = 0.8282 nm, b = 1.584 nm, c = 0.8376 nm, Z = 4, structure of the pentasamary tetragermanium type Ge 4 Sm 5 [1] [2] [3] .
The compound is formed by the peritectic reaction at a temperature of 1558 ° С [1] .
At a temperature of 67 K, the compound enters a ferromagnetic state [4] .
Notes
- ↑ 1 2 State diagrams of double metallic systems / Ed. N. P. Lyakishev. - M .: Mashinostroenie, 2001. - T. 3 Book 1. - 972 p. - ISBN 5-217-02843-2 .
- ↑ B. Predel. Nd-Sn (Neodymium-Tin) // Landolt-Börnstein - Group IV Physical Chemistry. - 1997. - T. 5H . - S. 1-2 . - DOI : 10.1007 / 10522884_2230 .
- ↑ H. Okamoto. Comment on Nd-Sn (neodymium-tin) // Journal of Phase Equilibria. - 1994. - V. 15 , № 5 . - p . 569-570 . - DOI : 10.1007 / BF02649425 .
- ↑ F. Weitzer, K. Hiebl, P. Rogl. Crystal chemistry and magnetism of neodymium stannides including compounds of the structural series of RE n Sn 3n − 2 // Journal of Solid State Chemistry. - 1992. - T. 98 , No. 2 . - p . 291-300 . - DOI : 10.1016 / S0022-4596 (05) 80237-3 .