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Ditantal sulfide

Ditantalum sulfide is a binary inorganic compound of tantalum and sulfur with the formula Ta 2 S, crystals.

Ditantal sulfide
Are common
Systematic
name
Ditantal sulfide
Traditional namesSulfur Tantalum
Chem. formulaTa 2 s
Physical properties
conditioncrystals
Molar mass393.96 g / mol
Density12.5 g / cm³
Thermal properties
Enthalpy of Education-169 [1] kJ / mol

Getting

  • The interaction of pure substances at high temperature:
2Ta+S→TTa2S{\ displaystyle {\ mathsf {2Ta + S \ {\ xrightarrow {T}} \ Ta_ {2} S}}} {\displaystyle {\mathsf {2Ta+S\ {\xrightarrow {T}}\ Ta_{2}S}}}

Physical Properties

Ditantal sulfide forms crystals of rhombic syngonium , space group P bcm , cell parameters a = 0.7379 nm , b = 0.5573 nm , c = 1.519 nm , Z = 12 [2] [3] .

Notes

  1. ↑ BU Harbrecht, SR Schmidt, HF Franzen. Thermodynamic properties of two metal-rich tantalum sulfides: Ta 2 S and Ta 6 S // Journal of Solid State Chemistry. - 1984. - T. 53 , No. 1 . - S. 113-119 . - DOI : 10.1016 / 0022-4596 (84) 90233-0 .
  2. ↑ B. Predel. S-Ta (Sulfur-Tantalum) // Landolt-Börnstein - Group IV Physical Chemistry. - 1998 .-- T. 5J . - S. 1 . - DOI : 10.1007 / 10551312_2660 .
  3. ↑ HF Franzen and JG Smeggil. The crystal structure of Ta 2 S // Acta Cryst .. - 1969. - T. B25 . - S. 1736-1741 . - DOI : 10.1107 / S0567740869004675 .



Source - https://ru.wikipedia.org/w/index.php?title=Sulfide_dithantal&oldid=80370308


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Clever Geek | 2019