Rhenium heptafluoride

Rhenium heptafluoride
Names
IUPAC name
rhenium heptafluoride, heptafluoridorhenium
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/7FH.Re/h7*1H;/q;;;;;;;+7/p-7 N
    Key: HFHBKXWKPQUYIA-UHFFFAOYSA-G N
  • InChI=1/7FH.Re/h7*1H;/q;;;;;;;+7/p-7/rF7Re/c1-8(2,3,4,5,6)7
    Key: HFHBKXWKPQUYIA-KLJGHBABAK
  • F[Re](F)(F)(F)(F)(F)F
Properties
ReF7
Molar mass 319.196 g/mol
Appearance Bright yellow crystalline solid
Density 4.3 g/cm3
Melting point 48.3 °C (118.9 °F; 321.4 K)
Boiling point 73.72 °C (164.70 °F; 346.87 K)
Reacts
Vapor pressure 13.41 kPa
Structure
triclinic, aP16
P1 (No. 2)
Thermochemistry
Enthalpy of fusion (ΔfH⦵fus)
 7.53 kJ/mol
30.77 kJ/mol
Related compounds
Related compounds
 Osmium heptafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Rhenium heptafluoride is the compound with the formula ReF7. It is a yellow low melting solid and is the only thermally stable metal heptafluoride. It has a distorted pentagonal bipyramidal structure similar to IF7, which was confirmed by neutron diffraction at 1.5 K. The structure is non-rigid, as evidenced by electron diffraction studies.

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