Caesium selenide

Caesium selenide
	; Cs+: __ Se2-: __
Identifiers
CAS Number	31052-46-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	148025;
ECHA InfoCard	100.045.848
EC Number	250-448-8;
PubChem CID	169244;
CompTox Dashboard (EPA)	DTXSID70953155 ;
	InChI InChI=1S/2Cs.Se/q2*+1;-2 Key: KUBAIENASCDSDJ-UHFFFAOYSA-N;
	SMILES [Se-2].[Cs+].[Cs+];
Properties
Chemical formula	Cs2Se
Molar mass	344.771
Appearance	colourless, highly hygroscopic crystals
Density	4.33 g·cm−3
Solubility in water	hydroyses
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H373, H410
Related compounds
Other anions	Caesium oxide; Caesium sulfide; Caesium sulfide; Caesium polonide
Other cations	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

Caesium selenide is an inorganic compound of caesium and selenium. It is a selenide, with the chemical formula of Cs₂Se. It can be prepared by reacting caesium and selenium. It has an inverse fluorite structure, with space group $Fm{\bar {3}}m$ . There are 4 units per unit cell,^[1] and the other selenides from the same group are similar.

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).^{[dead link‍]}
^ "C&L Inventory". echa.europa.eu.

[Lax-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] 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

[Alfa-3] Caesium selenide at AlfaAesar, accessed on Dienstag, 29 June 2010 (PDF) (JavaScript required).^{[dead link‍]}

[4] "C&L Inventory". echa.europa.eu.

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