Chemistry:Rubidium selenide
 Rb+: __ Se2-: __
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| Names | |
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| IUPAC name
Rubidium selenide
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| Identifiers | |
3D model (JSmol)
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PubChem CID
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| Properties | |
| Rb2Se | |
| Molar mass | 249.89 |
| Appearance | colourless, highly hygroscopic crystals[1] |
| Density | 2.912 g/cm3[2] 3.16 g/cm3[3] |
| Melting point | 733 °C[2] |
| hydrolyses[4] | |
| Solubility in other solvents | soluble in ethanol and glycerin |
| Structure | |
| cubic: inverse fluorite structure | |
| Hazards | |
| Main hazards | toxic |
| GHS pictograms |   
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| H331, H301, H373, H410 | |
| Related compounds | |
Other anions
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rubidium oxide, rubidium sulfide, rubidium telluride, rubidium polonide |
Other cations
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lithium selenide, sodium selenide, caesium selenide, francium selenide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
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.[5]
Preparation
Rubidium selenide can be prepared by reacting mercury selenide and metallic rubidium.[6] The elements can be synthesized in liquid ammonia.[7]
Hydrogen selenide can also be dissolved in an aqueous solution of rubidium hydroxide to eventually form rubidium selenide.[8] 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 [math]\displaystyle{ Fm\bar{3}m }[/math] and the lattice parameters are a=801.0 pm, per unit. The unit cell has 4 units.[1]
References
- ↑ 1.0 1.1 Jean D'Ans, Ellen Lax: Taschenbuch für Chemiker und Physiker. 3. Elemente, anorganische Verbindungen und Materialien, Minerale, Band 3. 4. Auflage, Springer, 1997, ISBN 978-3-5406-0035-0, S. 692 ([1], p. 692, at Google Books).
- ↑ 2.0 2.1 Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds. CRC Press, 1995, ISBN 978-0-8493-8671-8, S. 336 ([2], p. 336, at Google Books).
- ↑ Sommer, Helmut; Hoppe, Rudolf (February 1977). "Die Kristallstruktur von Cs2S. mit einer Bemerkung über Cs2Se, Cs2Te, Rb2Se und Rb2Te" (in de). Zeitschrift für anorganische und allgemeine Chemie 429 (1): 118–130. doi:10.1002/zaac.19774290116.
- ↑ Rubidium selenide at AlfaAesar, accessed on Dienstag, 29. Juni 2010 (PDF) (JavaScript required).
- ↑ (in en) Solid State Technology. 4. Cowan Publishing Corporation. 1961. p. 34. https://books.google.com/books?id=jCxKAQAAIAAJ&pg=PA34.
- ↑ Bergmann, Alfred (1937-03-13). "Über die Darstellung und Eigenschaften von Caesium-und Rubidium-Sulfid, Selenid und Tellurid" (in en). Zeitschrift für anorganische und allgemeine Chemie 231 (3): 269–280. doi:10.1002/zaac.19372310306. https://onlinelibrary.wiley.com/doi/10.1002/zaac.19372310306.
- ↑ Mellor, Joseph William (1963) (in en). A Comprehensive Treatise on Inorganic and Theoretical Chemistry. Longmans, Green. p. 2178. https://books.google.com/books?id=ANXvAAAAMAAJ&pg=PA2178.
- ↑ R. Abegg, F. Auerbach: 'Handbuch der anorganischen Chemie'. Verlag S. Hirzel, Bd. 2, 1908. S. 430.Volltext
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