Diboron tetrafluoride

Diboron tetrafluoride
Names
	Preferred IUPAC name Diboron tetrafluoride
	Systematic IUPAC name Tetrafluorodiborane(4)
Identifiers
CAS Number	13965-73-6;
3D model (JSmol)	Interactive image;
ChemSpider	123165;
PubChem CID	139653;
CompTox Dashboard (EPA)	DTXSID80161143 ;
	InChI InChI=1S/B2F4/c3-1(4)2(5)6 Key: WUWOPJNIAKTBSJ-UHFFFAOYSA-N;
	SMILES FB(F)B(F)F;
Properties
Chemical formula	B2F4
Molar mass	97.61 g·mol−1
Appearance	Colorless gas
Density	4.3 kg/m3 (gas)
Melting point	−56 °C (−69 °F; 217 K)
Boiling point	−34 °C (−29 °F; 239 K)
Thermochemistry
Heat capacity (C)	79.1 J/mol K
Std molar; entropy (S⦵298)	317.3 J/mol K
Std enthalpy of; formation (ΔfH⦵298)	-1440.1 kJ/mol
Gibbs free energy (ΔfG⦵)	-1410.4 kJ/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Diboron tetrafluoride is the inorganic compound with the formula (BF₂)₂. A colorless gas, the compound has a halflife of days at room temperature. It is the most stable of the diboron tetrahalides, and does not appreciably decompose under standard conditions.

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