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Rhenium(VII) sulfide

From Wikipedia, the free encyclopedia
Rhenium(VII) sulfide
Names
IUPAC name
Rhenium(VII) sulfide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.031.698Edit this at Wikidata
EC Number
  • 234-882-5
UNII
  • InChI=1S/2Re.7S
    Key: CVHXCQNYOAKCMI-UHFFFAOYSA-N
  • InChI=1/2Re.7S/rRe2S7/c3-1(4,5)9-2(6,7)8
    Key: CVHXCQNYOAKCMI-NEHFBHEFAV
  • S=[Re](=S)(=S)S[Re](=S)(=S)=S
Properties
Re2S7
Molar mass596.869 g/mol
Hazards
GHS labelling:
GHS06: ToxicGHS07: Exclamation mark
Danger
H301,H315,H319,H331,H412
P261,P264,P270,P271,P273,P280,P301+P310,P302+P352,P304+P340,P305+P351+P338,P311,P321,P330,P332+P313,P337+P313,P362,P403+P233,P405,P501
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Rhenium(VII) sulfide is a chemical compound with theformula Re2S7. It has a complex structure, but can be synthesized from direct combination of the elements:[1]2Re+7S→ΔRe2S7{\displaystyle {\ce {2Re{}+7S->[{} \atop \Delta ]Re2S7}}}Alternatively,rhenium(VII) oxide reacts withhydrogen sulfide in 4NHCl to the same end:[2]Re2O7+7H2S→ΔRe2S7+7H2O{\displaystyle {\ce {Re2O7{}+7H2S->[{} \atop \Delta ]Re2S7{}+7H2O}}}

The compound catalyses the reduction ofnitric oxide tonitrous oxide and hydrogenation of double bonds. In this regard, it unusually tolerates sulfur compounds, which poisonnoble metal catalysts.[1]

Rhenium(VII) sulfide decomposes when heated. Invacuum, it generatesrhenium(IV) sulfide:

Re2S7 →600oC 2ReS2+3S{\displaystyle \mathrm {Re_{2}S_{7}\ {\xrightarrow {600^{o}C}}\ 2ReS_{2}+3S} }

In air, the sulfide oxidizes tosulfur dioxide:

2Re2S7+21O2 →Δ 2Re2O7+14SO2{\displaystyle \mathrm {2Re_{2}S_{7}+21O_{2}\ {\xrightarrow {\Delta }}\ 2Re_{2}O_{7}+14SO_{2}} }

References

[edit]
  1. ^abSchwarz, D. E.; Frenkel, A. I.; Nuzzo, R. G.; Rauchfuss, T. B.; Vairavamurthy, A. (2004). "Electrosynthesis ofReS
    4    . XAS Analysis ofReS
    2    ,Re
    2    S
    7    , andReS
    4    ".Chemistry of Materials.16:151–158.doi:10.1021/cm034467v.
  2. ^Greenwood, Norman N.; Earnshaw, Alan (1997).Chemistry of the Elements (2nd ed.).Butterworth-Heinemann.ISBN 978-0-08-037941-8.
  • Kunyants, I. L.et al, eds. (1995).Химическая энциклопедия [Chemical encyclopedia](in Russian). Moscow: Soviet Encyclopedias.ISBN 978-5-85270-092-6
  • Nikolsky, B. P.et al, eds. (1971).Справочник химика [Handbook of Chemistry](in Russian). 3rd (revised) ed.Leningrad: Khimiya Publishing.
  • Ripan, R.; Ceteanu, I. (1972).Химия металлов [Chemistry of Metals](in Russian). Неорганическая химия [Inorganic chemistry]. Moscow:Mir.
Rhenium(0)
Organorhenium(0)
Rhenium(I)
Organorhenium(I)
Rhenium(II)
Rhenium(III)
Rhenium(IV)
Rhenium(V)
Rhenium(VI)
Rhenium(VII)
Perrhenates
Organorhenium(VII)
Sulfides(S2−)


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