1,1-Dimethyldiborane

1,1-Dimethyldiborane
Names
	Preferred IUPAC name 1,1-Dimethyldiborane(6)
	Other names Unsymmetrical dimethyldiborane
Identifiers
CAS Number	16924-32-6;
3D model (JSmol)	Interactive image;
CompTox Dashboard (EPA)	DTXSID10593296 ;
	InChI InChI=1S/C2H10B2/c1-4(2)5-3-6-4/h3H2,1-2H3 Key: KEWIJCBOFAPULG-UHFFFAOYSA-N;
	SMILES C[B]1(C)[H][BH2][H]1;
Properties
Chemical formula	C2H10B2
Molar mass	55.72 g·mol−1
Appearance	Colorless gas
Melting point	−150.2 °C (−238.4 °F; 123.0 K)
Boiling point	−4 °C (25 °F; 269 K)
Solubility in organic solvents	Soluble in ether, pentane, tetrahydrofuran
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	-25 kcal/mol
Hazards
NFPA 704 (fire diamond)	2 2
Related compounds
Related alkyl boranes	Methyldiborane; Trimethyldiborane; Tetramethyldiborane; Trimethylborane; Diethyldiborane
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). (what is ?) Infobox references

1,1-Dimethyldiborane is the organoboron compound with the formula (CH₃)₂B(μ-H)₂BH₂. A pair of related 1,2-dimethyldiboranes are also known. It is a colorless gas that ignites in air.