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 g/mol
Appearance	colourless, highly hygroscopic crystals
Density	4.33 g·cm−3
Solubility in water	hydrolyses
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H373, H410
Related compounds
Other anions	Caesium oxide; Caesium sulfide; Caesium telluride; 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.

v t e Caesium compounds
Compounds with noble gases	CsXeF₇
Compounds with halogens	CsF CsCl CsClO₄ CsBr CsBr₃ CsI CsI₃
Oxides and hydroxides	Cs₂O Cs₂O₂ Cs₂O₃ CsO₂ CsO₃ CsOH
Compounds with chalcogens	Cs₂S Cs₂SO₄ CsHSO₄ Cs2Se Cs₂SeO₄ Cs₂Te
Compounds with pnictogens	CsN₃ CsNO₃ Cs₂P₅ CsBi₂ Cs₃Bi₂Br₉ Cs₂AgBiBr₆
Compounds with group 14 elements	Cs₂CO₃ CsHCO₃
Compounds with group 13 elements	CsLiB₆O₁₀ Cs₂B₁₂H₁₂ Cs₂AlF₅
Compounds with transition metals	Cs₂TiO₃ Cs₂CrO₄ CsMnO₄ Cs₂CoF₆ Cs₂CuF₆ Cs₂ZrO₃ CsTcO₄ Cs₂WO₄ CsAu
Organocaesium compounds	Cs₂C₂O₄ CsC₂H₃O₂ C₁₈H₃₅CsO₂
Other compounds	CsH CsCN Cs₂PuCl₆

Identifiers
Cs⁺: __ Se^2-: __
CAS Number	31052-46-7^Y
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 g/mol
Appearance	colourless, highly hygroscopic crystals^[1]
Density	4.33 g·cm⁻³^[2]
Solubility in water	hydrolyses^[3]
Hazards
GHS labelling:^[4]
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H373, H410
Related compounds
Other anions	Caesium oxide Caesium sulfide Caesium telluride 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