Rhodium Fluoride (V)

Rhodium fluoride
Rhodium fluoride
Are common
Systematic ; name	Rhodium Fluoride (V)
Traditional names	Rhodium fluoride; rhodium pentafluoride
Chem. formula	RhF 5
Physical properties
condition	dark red crystals
Molar mass	197.90 g / mol
Density	3.95 g / cm³
Thermal properties
T. melt.	95.5 ° C
Classification
Reg. CAS number	14521-17-6, 41517-05-9

Rhodium (V) fluoride is an inorganic compound, a salt of rhodium metal and hydrofluoric acid with the formula RhF ₅ , dark red crystals.

Content

Getting

Effect of fluoride on heated rhodium:

{\mathsf {2Rh+5F_{2}\ {\xrightarrow {500-600^{o}C}}\ 2RhF_{5}}}

{\ displaystyle {\ mathsf {2Rh + 5F_ {2} \ {\ xrightarrow {500-600 ^ {o} C}} \ 2RhF_ {5}}}}

Effect of fluoride on heated rhodium (III) fluoride ^[1] :

{\mathsf {RhF_{3}+F_{2}\ {\xrightarrow {400^{o}C}}\ RhF_{5}}}

{\ displaystyle {\ mathsf {RhF_ {3} + F_ {2} \ {\ xrightarrow {400 ^ {o} C}} \ RhF_ {5}}}}

Decomposition when heated rhodium hexafluoride :

{\mathsf {2RhF_{6}\ {\xrightarrow {T}}\ RhF_{5}+F_{2}}}

{\ displaystyle {\ mathsf {2RhF_ {6} \ {\ xrightarrow {T}} \ RhF_ {5} + F_ {2}}}}

Physical Properties

Rhodium (V) fluoride forms dark red monoclinic crystals, space group P 2 ₁ / a , cell parameters a = 1.23376 nm, b = 0.99173 nm, c = 0.55173 nm, β = 100.42 ° , Z = 8, structure of osmium pentafluoride type OsF ₅ ^[2] . The crystals are composed of [RhF ₅ ] ₄ tetramers.

Notes

↑ JH Holloway, PR Rao, Neil Bartlett. Quinquevalent rhodium compounds: RhF ₅ and CsRhF ₆ // Chem. Commun. (London). - 1965. - p . 306-307 . - DOI : 10.1039 / C19650000306 .
↑ Barbara K. Morrell, Allan Zalkin, Alain Tressaud, Neil Bartlett. Crystal structure of rhodium pentafluoride // Inorganic Chemistry. - 1973. - Vol . 12 , No. 11 . - p . 2640–2644 . - DOI : 10.1021 / ic50129a029 .

Literature

Chemical Encyclopedia / Redkol .: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1995. - Vol. 4. - 639 p. - ISBN 5-85270-092-4 .

[Holloway-1] JH Holloway, PR Rao, Neil Bartlett. Quinquevalent rhodium compounds: RhF ₅ and CsRhF ₆ // Chem. Commun. (London). - 1965. - p . 306-307 . - DOI : 10.1039 / C19650000306 .

[2] Barbara K. Morrell, Allan Zalkin, Alain Tressaud, Neil Bartlett. Crystal structure of rhodium pentafluoride // Inorganic Chemistry. - 1973. - Vol . 12 , No. 11 . - p . 2640–2644 . - DOI : 10.1021 / ic50129a029 .