rhenium heptafluoride, heptafluoridorhenium
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||319.196 g/mol|
|Appearance||Bright yellow crystalline solid|
|Melting point||48.3 °C (118.9 °F; 321.4 K)|
|Boiling point||73.72 °C (164.70 °F; 346.87 K)|
|P-1, No. 2|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
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 1.5K. The structure is non-rigid as evidenced by electron diffraction studies.
It can be prepared from the elements at 400 °C: