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Dirubidium Selenide

Dirubidium selenide is an inorganic binary compound of rubidium and selenium with the formula Rb 2 Se, colorless crystals, reacts with water.

Dirubidium Selenide
Are common
Systematic
name
Dirubidium Selenide
Traditional namesSelenium rubidium
Chem. formulaRb 2 se
Physical properties
conditioncolorless crystals
Molar mass249.90 g / mol
Density3.22 g / cm³
Thermal properties
T. melt.733 ° C
Classification
Reg. CAS number31052-43-4
PubChem
Reg. EINECS number250-447-2
Smiles
Inchi
ChemSpider

Content

Getting

  • Vacuum fusion of stoichiometric amounts of pure substances:
2Rb+Se→733oCRb2Se{\ displaystyle {\ mathsf {2Rb + Se \ {\ xrightarrow {733 ^ {o} C}} \ Rb_ {2} Se}}}  

Physical Properties

Dirubidium selenide forms colorless crystals of cubic syngony , space group F m 3 m , cell parameters a = 0.8019 nm, Z = 4 [1] .

Chemical Properties

  • Vigorously reacts with water:
Rb2Se+2H2O→2RbOH+Se+H2{\ displaystyle {\ mathsf {Rb_ {2} Se + 2H_ {2} O \ {\ xrightarrow {}} \ 2RbOH + Se + H_ {2}}}}  

Notes

  1. ↑ Sommer H., Hoppe R. Die Kristallstruktur von Cs 2 S mit einer Bemerkung ueber Cs 2 Se , Cs 2 Te, Rb 2 Se und Rb 2 Te // Zeitschrift fuer Anorganische und Allgemeine Chemie. - 1977.- T. 429 . - S. 118-130 .

Literature

  • CRC Handbook of Chemistry and Physics . - 89th Edition. - Taylor and Francis Group, LLC, 2008-2009.


Source - https://ru.wikipedia.org/w/index.php?title=Dirubidium Selenide&oldid = 89266360


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