Direny silicide is an inorganic compound of rhenium and silicon with the formula Re 2 Si, crystals.
| Derenia Silicide | |
|---|---|
| Are common | |
| Systematic name | Derenia Silicide |
| Traditional names | Siliceous rhenium |
| Chem. formula | Re 2 Si |
| Physical properties | |
| condition | crystals |
| Molar mass | 400.50 g / mol |
| Density | 15.9 g / cm³ |
| Thermal properties | |
| T. melt. | 1810; 1960 ° C |
| Enthalpy of Education | -68 [1] kJ / mol |
| Classification | |
| Reg. CAS number | 12384-85-9 |
Getting
- Heating stoichiometric amounts of pure substances:
Physical Properties
Direning silicide forms monoclinic syngony crystals, space group P 2 1 / b , cell parameters a = 0.64444 nm, b = 0.53898 nm, c = 0.96019 nm, β = 94.215 °, Z = 4, [2] [3] [4] [5] .
The compound is formed by a peritectic reaction at a temperature of 1960 ° C [2] (1810 ° C [4] ).
At a temperature of 3.8 K, the compound goes into a superconducting state [5]
Notes
- ↑ Guosheng Shao. Thermodynamic analysis of the Re – Si system // Intermetallics. - 2001. - T. 9 , No. 12 . - S. 1063-1068 . - DOI : 10.1016 / S0966-9795 (01) 00110-8 .
- ↑ 1 2 State Diagrams of Double Metal Systems / Ed. N.P. Lyakisheva. - M .: Engineering, 2000. - T. 3 Book 2. - 448 p. - ISBN 5-217-02932-3 .
- ↑ B. Predel. Re-Si (Rhenium-Silicon) // Landolt-Börnstein - Group IV Physical Chemistry. - 1998 .-- T. 5J . - S. 1-2 . - DOI : 10.1007 / 10551312_2592 .
- ↑ 1 2 AB Gokhale, R. Abbaschian. The Re-Si system (rhenium-silicon) // Journal of Phase Equilibria. - 1996. - T. 17 , No. 5 . - S. 451-454 . - DOI : 10.1007 / BF02667640 .
- ↑ 1 2 T. Siegrist, JE Greedan, JD Garrett, Gong Wenhe, CV Stager. Crystal structure and superconductivity in Re 2 Si // Journal of the Less Common Metals. - 1991. - T. 171 , No. 2 . - S. 171–177 . - DOI : 10.1016 / 0022-5088 (91) 90140-Y .