Diboron tetrafluoride

Diboron tetrafluoride

Stick model of diboron tetrafluoride Space-filling model of the diboron tetrafluoride molecule
Names
Preferred IUPAC name Diboron tetrafluoride
Systematic IUPAC name Tetrafluorodiborane
Identifiers
CAS Number	13965-73-6
ChemSpider	123165 N
Jmol 3D model	Interactive image
PubChem	139653
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	97.616 g/mol
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
Specific heat capacity (C)	79.1 J/mol K
Std molar entropy (So298)	317.3 J/mol K
Std enthalpy of formation (ΔfHo298)	-1440.1 kJ/mol
Gibbs free energy (ΔfG˚)	-1410.4 kJ/mol
Vapor pressure	{{{value}}}
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 a colorless gas. It can be formed by reacting boron monofluoride with boron trifluoride at low temperatures, taking care not to form higher polymers.

External links

• Diboron tetrafluoride at webelements