Strontium selenide

Strontium selenide is an inorganic compound with the chemical formula SrSe.

Strontium selenide

Identifiers
CAS Number	1315-07-7 Y
3D model (JSmol)	Interactive image
EC Number	215-258-1
PubChem CID	73978
CompTox Dashboard (EPA)	DTXSID801014323
InChI InChI=1S/Se.Sr/q-2;+2 Key: BCTHFFLRHBNYHU-UHFFFAOYSA-N
SMILES [Se-2].[Sr+2]
Properties
Chemical formula	SrSe
Molar mass	166.58
Appearance	White powder, turns reddish brown when exposed to air[1]
Density	4.5
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Preparation

Strontium selenide can be prepared by reducing strontium selenate with hydrogen at 600 °C.^[2] It can also be produced by reacting strontium and hydrogen selenide in liquid ammonia.^[3]

Properties

Strontium selenide crystallizes in the orthorhombic crystal system with space group Fm3m. It has a NaCl structure.^[4][5] It transforms into a CsCl structure with a space group Pm3m under high pressure (14 GPa).^[6]

It reacts with mercury selenide and germanium diselenide at high temperature to obtain the SrHgGeSe₄ crystal.^[7] It reacts with thorium and selenium at high temperature in the presence of tin to obtain SrTh₂Se₅.^[8]