Bismuthine

Bismuthine
	Bismuth, Bi Hydrogen, H
Names
	IUPAC name bismuthane
	Other names bismuth trihydride ; hydrogen bismuthide ; bismine ; trihydridobismuth
Identifiers
CAS Number	18288-22-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	8886 ;
PubChem CID	9242;
UNII	OCH2V0Z37N ;
CompTox Dashboard (EPA)	DTXSID3052484 DTXSID50171355, DTXSID3052484 ;
	InChI InChI=1S/Bi.3H Key: BPBOBPIKWGUSQG-UHFFFAOYSA-N ; InChI=1/Bi.3H/rBiH3/h1H3 Key: BPBOBPIKWGUSQG-PVKOQVOWAF;
	SMILES [BiH3];
Properties
Chemical formula	BiH3
Molar mass	212.00 g/mol
Appearance	colourless gas
Density	0.008665 g/mL (20 °C)
Boiling point	16.8 °C (62.2 °F; 289.9 K) (extrapolated)
Conjugate acid	Bismuthonium
Structure
Molecular shape	trigonal pyramidal
Related compounds
Related hydrides	Ammonia; Phosphine; Arsine; Stibine
Related compounds	Polonium hydride
	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

Bismuthine (IUPAC name: bismuthane) is the chemical compound with the formula Bi H₃. As the heaviest analogue of ammonia (a pnictogen hydride), BiH₃ is unstable, decomposing to bismuth metal well below 0 °C. This compound adopts the expected pyramidal structure with H–Bi–H angles of around 90°.

The term bismuthine may also refer to a member of the family of organobismuth(III) species having the general formula BiR
₃, where R is an organic substituent. For example, Bi(CH₃)₃ is trimethylbismuthine.