Rhenium Tetrafluoride

Rhenium tetrafluoride
Names
	Other names Rhenium(IV) fluoride
Identifiers
CAS Number	149852-31-3;
3D model (JSmol)	Interactive image;
ChemSpider	57568799;
PubChem CID	18469520;
CompTox Dashboard (EPA)	20594153;
	InChI InChI=1S/4FH.Re/h4*1H;/p-4 Key: IZVAOCKUNBYXSU-UHFFFAOYSA-J;
	SMILES [F-].[F-].[F-].[F-].[Re];
Properties
Chemical formula	F4Re
Molar mass	262.201 g·mol−1
Appearance	blue crystals
Density	5.38 g/cm3
Melting point	124.5 °C (256.1 °F; 397.6 K)
Boiling point	795 °C (1,463 °F; 1,068 K)
Structure
Crystal structure	tetragonal
Related compounds
Related compounds	Osmium tetrafluoride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Rhenium tetrafluoride is a binary inorganic compound of rhenium and fluorine with the chemical formula ReF
4.^[1]

Synthesis

Rhenium tetrafluoride can be made by the reduction of rhenium hexafluoride with hydrogen, rhenium, or sulfur dioxide:^[2]^[3]

ReF
6 + H
2 → 2ReF
4 + 2HF

2ReF
6 + Re → 3ReF
4

ReF
6 + SO
2 → ReF
4 + SO
2F
2

Rhenium tetrafluoride forms blue crystals^[4] of tetragonal structure, cell parameters a = 1.012 nm, c = 1.595 nm.

Rhenium tetrafluoride reacts with water, and corrodes glass when heated.

↑ (in en) WADC Technical Report. Wright Air Development Division, Air Research and Development Command, United States Air Force. 1957. p. 70. https://books.google.com/books?id=CpknAAAAMAAJ&dq=Rhenium+tetrafluoride&pg=RA1-PA70. Retrieved 6 April 2023.
↑ Kemmitt, R. D. W.; Peacock, R. D. (26 January 2016) (in en). The Chemistry of Manganese, Technetium and Rhenium: Pergamon Texts in Inorganic Chemistry. Elsevier. p. 918. ISBN 978-1-4831-8762-4. https://books.google.com/books?id=c0n-BAAAQBAJ&dq=Rhenium+tetrafluoride&pg=PA918. Retrieved 6 April 2023.
↑ Druce, J. G. F.; Druce, Gerald (1948) (in en). Rhenium: Dvi-manganese, the Element of Atomic Number 75. CUP Archive. p. 50. https://books.google.com/books?id=u8Q6AAAAIAAJ&dq=Rhenium+tetrafluoride&pg=PA50. Retrieved 6 April 2023.
↑ "WebElements Periodic Table » Rhenium » rhenium tetrafluoride". webelements.com. https://www.webelements.com/compounds/rhenium/rhenium_tetrafluoride.html.

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