Ruthenium (VI) fluoride

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Structural formula
Ruthenium (VI) fluoride
General
Surname Ruthenium (VI) fluoride
other names

Ruthenium hexafluoride

Molecular formula RuF 6
Brief description

dark brown crystalline solid

External identifiers / databases
CAS number 13693-08-8
PubChem 21528530
ChemSpider 57450716
Wikidata Q409508
properties
Molar mass 215.07 g mol −1
Physical state

firmly

density

3.68 g cm −3 (−140 ° C)

Melting point

54 ° C

safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Ruthenium (VI) fluoride (RuF 6 ), usually also ruthenium hexafluoride , is a chemical compound of the elements ruthenium and fluorine and belongs to the group of hexafluorides .

presentation

Ruthenium hexafluoride is produced by direct conversion of the metal in a gas stream of F 2 / Ar at 400-450 ° C. The yields are below 10%.

properties

Ruthenium hexafluoride is a dark brown crystalline solid that melts at 54 ° C. It crystallizes in the orthorhombic crystal system (measured at −140 ° C) in the space group  Pnma (No. 62) with the lattice parameters a  = 931.3  pm , b  = 848.4 pm and c  = 491.0 pm and four formula units per unit cell with a calculated density of 3.68 g · cm −3 . The RuF 6 molecule is octahedral ( O h ); the Ru – F bond length is 181.8 pm. Template: room group / 62

Individual evidence

  1. a b c David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Properties of the Elements and Inorganic Compounds, pp. 4-86.
  2. a b c d T. Drews, J. Supeł, A. Hagenbach, K. Seppelt: "Solid State Molecular Structures of Transition Metal Hexafluorides", in: Inorganic Chemistry , 2006 , 45  (9), pp. 3782-3788; doi : 10.1021 / ic052029f ; PMID 16634614 .
  3. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

literature