Tetraselenium tetranitride

Tetraselenium tetranitride is the inorganic compound with the formula Se₄N₄. Like the analogous tetrasulfur tetranitride S₄N₄, Se₄N₄ is an orange solid. It is however less soluble and more shock-sensitive than S₄N₄.^[2]

Tetraselenium tetranitride

Names
IUPAC name 2,4,6,8-tetraselena-1,3,5,7-tetrazatricyclo[3.3.0.03,7]octane
Other names nitrogen selenide
Identifiers
CAS Number	10102-12-2
3D model (JSmol)	Interactive image
ChemSpider	68007107
PubChem CID	134812014
UNII	K1U2U165UH
CompTox Dashboard (EPA)	DTXSID201349794
InChI InChI=1S/N4Se4/c5-1-2-7-3(5)4(6-1)8-2 Key: KEFYKDIPBYQPHW-UHFFFAOYSA-N
SMILES N12N3[Se]N([Se]1)N([Se]2)[Se]3
Properties
Chemical formula	Se4N4
Molar mass	371.912 g·mol−1
Appearance	orange solid
Density	4.223 g/cm3[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	explosive
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

As determined by X-ray crystallography, Se₄N₄ adopts a cage structure similar to that of S₄N₄. The Se−Se and Se−N distances are 2.740 and 1.800 Å, respectively. The N−Se−N angles are 90°.^[1][3]

Among its many reactions,^[4][5] Se₄N₄ reacts with aluminium chloride to form adducts of Se₂N₂.^[6]