Iridium tetrastannide - a binary inorganic compound of tin and iridium with the formula IrSn 4 , crystals.
| Iridium tetrastannide | |
|---|---|
| Are common | |
| Systematic name | Iridium tetrastannide |
| Chem. formula | IrSn 4 |
| Rac formula | Sn 4 Ir |
| Physical properties | |
| condition | crystals |
| Molar mass | 667.06 g / mol |
| Density | 9.7 g / cm³ |
| Classification | |
| Reg. CAS number | 89633-68-1 |
Getting
- Fusion of stoichiometric amounts of pure substances:
Physical Properties
Iridium tetrastannide forms crystals of several modifications:
- α-IrSn 4 , trigonal syngony , space group P 3 1 21 , cell parameters a = 0.6791 nm, c = 0.8575 nm, Z = 3 [1] ;
- β-IrSn 4 , tetragonal syngony , space group I 4 1 / acd , cell parameters a = 0.63096 nm, c = 2.2770 nm, Z = 8 [2] ;
- Orthorhombic modification , cell parameters a = 0.6274 nm, b = 0.6337 nm, c = 1.1352 nm, Z = 4, was obtained at a pressure of 6 GPa and a temperature of 900-1100 ° С [3] .
Notes
- ↑ Arne Lang, Wolfgang Jeitschko. Transition-metal stannides with high tin content: Os 4 Sn 17 , RhSn 3 , RhSn 4 and IrSn 4 // Journal of Materials Chemistry. - 1996. - V. 6 , № 12 . - p . 1897-1903 . - DOI : 10.1039 / JM9960601897 .
- ↑ Eva-Lisa Nordmark, Olle Wallner, Ulrich Häussermann. Polymorphism of IrSn 4 // Journal of Solid State Chemistry. - 2002. - T. 168 , № 1 . - p . 34–40 . - DOI : 10.1006 / jssc.2002.9672 .
- ↑ VI Larchev, SV Popova. IrSn 4 and RhGe 4 formed by high pressure treatment // Journal of the Less Common Metals. - 1984. - Vol. 98 , No. 1 . - C. L1 – L3 . - DOI : 10.1016 / 0022-5088 (84) 90288-1 .