Rhenium(Vii) Sulfide

Rhenium(VII) sulfide
Names
	IUPAC name Rhenium(VII) sulfide
Identifiers
CAS Number	12038-67-4 ;
3D model (JSmol)	Interactive image;
ChemSpider	21171359;
EC Number	234-882-5;
PubChem CID	159414;
UNII	K72K37878A ;
CompTox Dashboard (EPA)	DTXSID901022921;
	InChI 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;
	SMILES S=[Re](=S)(=S)S[Re](=S)(=S)=S;
Properties
Chemical formula	Re2S7
Molar mass	596.869 g/mol
Hazards
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H301, H315, H319, H331, H412
GHS precautionary statements	P261, P264, P270, P271, P273, P280, P301+310, P302+352, P304+340, P305+351+338, P311, P321, P330, P332+313, P337+313, P362, P403+233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

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

The compound catalyses the reduction of nitric oxide to nitrous oxide and hydrogenation of double bonds. In this regard, it unusually tolerates sulfur compounds, which poison noble metal catalysts.^[1]

Rhenium(VII) sulfide decomposes when heated. In vacuum, it generates rhenium(IV) sulfide:

[math]\displaystyle{ \mathrm{Re_2S_7 \ \xrightarrow{600^oC}\ 2ReS_2 + 3S } }[/math]

In air, the sulfur oxidizes to sulfur dioxide:

[math]\displaystyle{ \mathrm{2Re_2S_7 + 21O_2 \ \xrightarrow{\Delta}\ 2Re_2O_7 + 14SO_2 } }[/math]

References

↑ ^1.0 ^1.1 Schwarz, D. E.; Frenkel, A. I.; Nuzzo, R. G.; Rauchfuss, T. B.; Vairavamurthy, A. (2004). "Electrosynthesis of ReS₄. XAS Analysis of ReS₂, Re₂S₇, and ReS₄". Chemistry of Materials 16: 151–158. doi:10.1021/cm034467v.ReS₄.+XAS+Analysis+of+ReS₂,+Re₂S₇,+and+ReS₄&rft.jtitle=Chemistry+of+Materials&rft.aulast=Schwarz,+D.+E.&rft.au=Schwarz,+D.+E.&rft.au=Frenkel,+A.+I.&rft.au=Nuzzo,+R.+G.&rft.au=Rauchfuss,+T.+B.&rft.au=Vairavamurthy,+A.&rft.date=2004&rft.volume=16&rft.pages=151–158&rft_id=info:doi/10.1021/cm034467v&rfr_id=info:sid/en.wikibooks.org:Chemistry:Rhenium(VII)_sulfide">
↑ 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). 3^rd (revised) ed. Leningrad: Khimiya Publishing.
Ripan, R.; Ceteanu, I. (1972). Химия металлов [Chemistry of Metals] (in Russian). Неорганическая химия [Inorganic chemistry]. Moscow: Mir.

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[:0-1] 1.0 ^1.1 Schwarz, D. E.; Frenkel, A. I.; Nuzzo, R. G.; Rauchfuss, T. B.; Vairavamurthy, A. (2004). "Electrosynthesis of ReS₄. XAS Analysis of ReS₂, Re₂S₇, and ReS₄". Chemistry of Materials 16: 151–158. doi:10.1021/cm034467v.ReS₄.+XAS+Analysis+of+ReS₂,+Re₂S₇,+and+ReS₄&rft.jtitle=Chemistry+of+Materials&rft.aulast=Schwarz,+D.+E.&rft.au=Schwarz,+D.+E.&rft.au=Frenkel,+A.+I.&rft.au=Nuzzo,+R.+G.&rft.au=Rauchfuss,+T.+B.&rft.au=Vairavamurthy,+A.&rft.date=2004&rft.volume=16&rft.pages=151–158&rft_id=info:doi/10.1021/cm034467v&rfr_id=info:sid/en.wikibooks.org:Chemistry:Rhenium(VII)_sulfide">

[2] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.