Caesium selenide
Cs+: __ Se2-: __
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Other names
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.045.848 |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| Cs2Se | |
| Molar mass | 344.771 g/mol |
| Appearance | colourless, highly hygroscopic crystals[1] |
| Density | 4.33 g·cm−3[2] |
| hydrolyses[3] | |
| Hazards | |
| GHS labelling:[4] | |
| Danger | |
| H301, H331, H373, H410 | |
| Related compounds | |
Other anions
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Caesium oxide Caesium sulfide Caesium telluride Caesium polonide |
Other cations
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Lithium selenide Sodium selenide Potassium selenide Rubidium selenide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Caesium selenide is an inorganic compound with the chemical formula Cs2Se. It has an inverse fluorite structure, with space group . There are 4 units per unit cell,[1] and the other selenides from the same group are similar.
Preparation
It can be prepared by reacting caesium and selenium. A mechanochemical technique utilizing reactive ball milling under an argon atmosphere has been reported.[5]
References
- ^ a b 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).
- ^ Sommer, Helmut; Hoppe, Rudolf. The crystal structure of cesium sulfide and a remark about cesium selenide, cesium telluride, rubidium selenide, and rubidium telluride (in German). Zeitschrift fuer Anorganische und Allgemeine Chemie, 1977. 429: 118–130. ISSN: 0044-2313
- ^ Caesium selenide at AlfaAesar, accessed on Dienstag, 29 June 2010 (PDF) (JavaScript required).
- ^ "C&L Inventory". echa.europa.eu.
- ^ Emminghaus, Anahita I. A.; Papenfuß, Josina; Mertens, Alisha; Rasche, Bertold. "Synthetic Access to Alkali Metal Selenides via Ball Milling". Zeitschrift für anorganische und allgemeine Chemie. n/a (n/a) e202500148. doi:10.1002/zaac.202500148. ISSN 1521-3749.