Diimide

Diimide
E/trans-diazene
Z/cis-diazene
Names
	IUPAC name Diazene
	Other names Diimide; Diimine; Dihydridodinitrogen; Azodihydrogen
Identifiers
CAS Number	3618-05-1 ; 15626-43-4 (E)-diazene ; 15626-42-3 (Z)-diazene ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:30096 ;
ChemSpider	10612167 ;
KEGG	C05360 ;
MeSH	Diazene
PubChem CID	123195;
UNII	LM321PYV3Y ;
CompTox Dashboard (EPA)	DTXSID00189748 ;
	InChI InChI=1S/H2N2/c1-2/h1-2H Key: RAABOESOVLLHRU-UHFFFAOYSA-N ; InChI=1/H2N2/c1-2/h1-2H Key: RAABOESOVLLHRU-UHFFFAOYAG;
	SMILES N=N;
Properties
Chemical formula	H2N2
Molar mass	30.030 g·mol−1
Appearance	Yellow gas
Melting point	−80 °C (−112 °F; 193 K)
Related compounds
Other anions	diphosphene; dinitrogen difluoride
Other cations	azo compounds
Related Binary azanes	ammonia; diazane; triazane;
Related compounds	isodiazene; triazene; tetrazene;
	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

Diimide, also called diazene or diimine, is a compound having the formula HN=NH. It exists as two geometric isomers, E (trans) and Z (cis). The term diazene is more common for organic derivatives of diimide. Thus, azobenzene is an example of an organic diazene.

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