Zinc selenide

Zinc selenide
Names
	Other names Zinc selenide; Stilleite
Identifiers
CAS Number	1315-09-9 ;
3D model (JSmol)	zincblende structure: Interactive image; wurtzite structure: Interactive image; wurtzite structure: Interactive image;
ChemSpider	7969585;
ECHA InfoCard	100.013.873
EC Number	215-259-7;
PubChem CID	4298215;
UNII	OWX23150D5 ;
CompTox Dashboard (EPA)	DTXSID80893851 ;
	InChI InChI=1S/Se.Zn Key: SBIBMFFZSBJNJF-UHFFFAOYSA-N;
	SMILES zincblende structure: [SeH+2]12[ZnH2-2][SeH+2]3[ZnH2-2][SeH+2]([ZnH-2]14)[ZnH-2]1[Se+2]5([ZnH-2]38)[Zn-2]26[SeH+2]2[ZnH-2]([Se+2]4)[SeH+2]1[ZnH2-2][SeH+2]3[ZnH-2]2[Se+2][ZnH-2]([SeH+2]6[ZnH-2]([SeH+2])[SeH+2]68)[SeH+2]([ZnH2-2]6)[ZnH-2]35; wurtzite structure: [ZnH2-2]1[Se+2]47[ZnH-2]2[Se+2][ZnH-2]3[Se+2]8([ZnH2-2][SeH+2]([ZnH2-2]4)[ZnH2-2]6)[ZnH-2]4[Se+2][ZnH-2]5[Se+2]6([ZnH2-2]6)[Zn-2]78[Se+2]78[ZnH-2]([SeH+2]69)[SeH+2]5[ZnH2-2][SeH+2]4[ZnH-2]7[SeH+2]3[ZnH2-2][SeH+2]2[ZnH-2]8[SeH+2]1[ZnH2-2]9; wurtzite structure: [ZnH2-2]1[SeH+2]([ZnH2-2]6)[ZnH2-2][SeH+2]7[ZnH-2]2[Se+2][Zn-2]3([Se+2][ZnH-2]9[Se+2]5)[Se+2]18[Zn-2]45[Se+2][ZnH-2]5[SeH+2]6[Zn-2]78[Se+2]78[ZnH2-2][SeH+2]5[ZnH2-2][Se+2]4([ZnH2-2][SeH+2]9[ZnH2-2]4)[ZnH-2]7[Se+2]34[ZnH2-2][SeH+2]2[ZnH2-2]8;
Properties
Chemical formula	ZnSe
Molar mass	144.35 g/mol
Appearance	light yellow solid
Density	5.27 g/cm3
Melting point	1,525 °C (2,777 °F)
Solubility in water	negligible
Band gap	2.82 eV (10 K)
Refractive index (nD)	2.67 (550 nm); 2.40 (10.6 μm)
Structure
Crystal structure	Zincblende (cubic)
Lattice constant	a = 566.8 pm
Coordination geometry	Tetrahedral (Zn2+); Tetrahedral (Se2−)
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	−177.6 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H373, H410
Precautionary statements	P260, P261, P264, P270, P271, P273, P301+P310, P304+P340, P311, P314, P321, P330, P391, P403+P233, P405, P501
Related compounds
Other anions	Zinc oxide; Zinc sulfide; Zinc telluride
Other cations	Cadmium selenide; Mercury selenide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Zinc selenide is the inorganic compound with the formula ZnSe. It is a lemon-yellow solid although most samples have a duller color due to the effects of oxidation. It is an intrinsic semiconductor with a band gap of about 2.70 eV at 25 °C (77 °F), equivalent to a wavelength of 459 nm. ZnSe occurs as the rare mineral stilleite, named after Hans Stille.

Names


Other names Zinc selenide Stilleite
Identifiers
CAS Number	1315-09-9^Y
3D model (JSmol)	zincblende structure: Interactive image wurtzite structure: Interactive image wurtzite structure: Interactive image
ChemSpider	7969585
ECHA InfoCard	100.013.873
EC Number	215-259-7
PubChem CID	4298215
UNII	OWX23150D5^Y
CompTox Dashboard (EPA)	DTXSID80893851
InChI InChI=1S/Se.Zn Key: SBIBMFFZSBJNJF-UHFFFAOYSA-N
SMILES zincblende structure: [SeH+2]12[ZnH2-2][SeH+2]3[ZnH2-2][SeH+2]([ZnH-2]14)[ZnH-2]1[Se+2]5([ZnH-2]38)[Zn-2]26[SeH+2]2[ZnH-2]([Se+2]4)[SeH+2]1[ZnH2-2][SeH+2]3[ZnH-2]2[Se+2][ZnH-2]([SeH+2]6[ZnH-2]([SeH+2])[SeH+2]68)[SeH+2]([ZnH2-2]6)[ZnH-2]35 wurtzite structure: [ZnH2-2]1[Se+2]47[ZnH-2]2[Se+2][ZnH-2]3[Se+2]8([ZnH2-2][SeH+2]([ZnH2-2]4)[ZnH2-2]6)[ZnH-2]4[Se+2][ZnH-2]5[Se+2]6([ZnH2-2]6)[Zn-2]78[Se+2]78[ZnH-2]([SeH+2]69)[SeH+2]5[ZnH2-2][SeH+2]4[ZnH-2]7[SeH+2]3[ZnH2-2][SeH+2]2[ZnH-2]8[SeH+2]1[ZnH2-2]9 wurtzite structure: [ZnH2-2]1[SeH+2]([ZnH2-2]6)[ZnH2-2][SeH+2]7[ZnH-2]2[Se+2][Zn-2]3([Se+2][ZnH-2]9[Se+2]5)[Se+2]18[Zn-2]45[Se+2][ZnH-2]5[SeH+2]6[Zn-2]78[Se+2]78[ZnH2-2][SeH+2]5[ZnH2-2][Se+2]4([ZnH2-2][SeH+2]9[ZnH2-2]4)[ZnH-2]7[Se+2]34[ZnH2-2][SeH+2]2[ZnH2-2]8
Properties
Chemical formula	ZnSe
Molar mass	144.35 g/mol
Appearance	light yellow solid
Density	5.27 g/cm³
Melting point	1,525 °C (2,777 °F)
Solubility in water	negligible
Band gap	2.82 eV (10 K)
Refractive index (n_D)	2.67 (550 nm) 2.40 (10.6 μm)
Structure
Crystal structure	Zincblende (cubic)
Lattice constant	a = 566.8 pm
Coordination geometry	Tetrahedral (Zn²⁺) Tetrahedral (Se²⁻)
Thermochemistry
Std enthalpy of formation (Δ_fH^⦵₂₉₈)	−177.6 kJ/mol
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H373, H410
Precautionary statements	P260, P261, P264, P270, P271, P273, P301+P310, P304+P340, P311, P314, P321, P330, P391, P403+P233, P405, P501
Related compounds
Other anions	Zinc oxide Zinc sulfide Zinc telluride
Other cations	Cadmium selenide Mercury selenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references