Rubidium selenide
Rubidium selenide is an inorganic compound composed of selenium and rubidium. It is a selenide with a chemical formula of Rb2Se. Rubidium selenide is used together with caesium selenide in photovoltaic cells.[1]
Preparation
Rubidium selenide can be prepared by reacting mercury selenide and metallic rubidium.[2] The elements can be synthesized in liquid ammonia.[3]
Hydrogen selenide can also be dissolved in an aqueous solution of rubidium hydroxide to eventually form rubidium selenide.[4] This method is similar to the method for preparing rubidium sulfide, because they are both chalcogenide compounds.
- RbOH + H2Se → RbHSe + H2O
- RbHSe + RbOH → Rb2Se + H2O
Crystal structure
Rubidium selenide has cubic crystal structure, which belongs to the antifluorite structure, and the space group is and the lattice parameters are a=801.0 pm, per unit. The unit cell has 4 units.[5]
References
Template:Rubidium compounds Template:Selenides
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- ↑ R. Abegg, F. Auerbach: 'Handbuch der anorganischen Chemie'. Verlag S. Hirzel, Bd. 2, 1908. S. 430.Volltext
- ↑ Cite error: Invalid
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