Rhenium (IV) sulfide

Crystal structure
	__ Re 4+ __ S 2−
General
Surname	Rhenium (IV) sulfide
other names	Rhenium disulfide
Ratio formula	ReS 2
Brief description	black odorless solid
External identifiers / databases
EC number	234-878-3
ECHA InfoCard	100,031,695
PubChem	82864
Wikidata	Q4445872
properties
Molar mass	250.33 g mol −1
Physical state	firmly
density	7.506 g cm −3
solubility	almost insoluble in water
safety instructions
GHS labeling of hazardous substances	no GHS pictograms
	no GHS pictograms
H and P phrases	H: no H-phrases
	P: no P-phrases
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Rhenium (IV) sulfide , also known as rhenium disulfide , is an inorganic chemical compound of rhenium from the group of sulfides with the chemical composition ReS ₂ .

Occurrence

Rhenium (IV) sulfide occurs naturally in the form of the mineral rheniite .

Extraction and presentation

Rhenium (IV) sulfide can be produced by reacting rhenium with sulfur at around 1000 ° C.

{\ displaystyle \ mathrm {Re + 2 \ S \ longrightarrow ReS_ {2}}}

It can also be obtained by thermal decomposition of rhenium (VII) sulfide at 1100 ° C.

{\ displaystyle \ mathrm {Re_ {2} S_ {7} \ longrightarrow 2 \ ReS_ {2} +3 \ S}}

properties

Rhenium (IV) sulfide is a black, odorless solid that is insoluble in water and is the most stable rhenium sulfide. It is resistant to hydrochloric acid , alkalis and alkali sulfide, is oxidized to ReO ₄^- by hypochlorous acid , nitric acid , etc. It reacts with quartz at 1000 ° C and does not react with sulfur even when heated. At temperatures above 700 ° C it breaks down into rhenium and sulfur in a vacuum and is reduced to rhenium by hydrogen at elevated temperatures. The compound is a diamagnetic semiconductor and has a triclinic crystal structure with the space group P 1 (space group no. 2) and the lattice parameters a = 645.5 pm, b = 636.2 pm, c = 640.1 pm, α = 105 , 04 °, β = 91.60 ° and γ = 118.97 °, which corresponds to a distorted cadmium (II) chloride layer structure and is isotypic to that of rhenium diselenide . Template: room group / 2

Individual evidence

↑ ^a ^b ^c ^d ^e ^f data sheet Rhenium (IV) sulfide, 99% from AlfaAesar, accessed on August 1, 2013 ( PDF )(JavaScript required) .
↑ ^a ^b ^c Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1619.
↑ Erwin Riedel: Inorganic Chemistry . Walter de Gruyter, 2004, ISBN 3-11-018168-1 , p. 811 ( limited preview in Google Book search).
^ Christoph Janiak, Hans-Jürgen Meyer, Dietrich Gudat, Ralf Alsfasser: Riedel Modern Inorganic Chemistry . Walter de Gruyter, 2012, ISBN 3-11-024901-4 , p. 338 ( limited preview in Google Book search).
↑ H.-J. Lamfers, A. Meetsma, GA Wiegers, JL de Boer: The crystal structure of some rhenium and technetium dichalcogenides. In: Journal of Alloys and Compounds , 241, 1996, pp. 34-39, doi: 10.1016 / 0925-8388 (96) 02313-4 .

[Alfa-1] ↑ ^a ^b ^c ^d ^e ^f data sheet Rhenium (IV) sulfide, 99% from AlfaAesar, accessed on August 1, 2013 ( PDF )(JavaScript required) .

[brauer-2] Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1619.

[Erwin_Riedel-3] Erwin Riedel: Inorganic Chemistry . Walter de Gruyter, 2004, ISBN 3-11-018168-1 , p. 811 ( limited preview in Google Book search).

[von_Christoph_Janiak,_Hans-Jürgen_Meyer,_Dietrich_Gudat,_Ralf_Alsfasser-4] Christoph Janiak, Hans-Jürgen Meyer, Dietrich Gudat, Ralf Alsfasser: Riedel Modern Inorganic Chemistry . Walter de Gruyter, 2012, ISBN 3-11-024901-4 , p. 338 ( limited preview in Google Book search).

[5] H.-J. Lamfers, A. Meetsma, GA Wiegers, JL de Boer: The crystal structure of some rhenium and technetium dichalcogenides. In: Journal of Alloys and Compounds , 241, 1996, pp. 34-39, doi: 10.1016 / 0925-8388 (96) 02313-4 .