Silicon sulfide 5296939 184468225 2008-01-15T10:55:38Z Axiosaurus 3399137 changed chem box to chembox new {{chembox new | ImageFile = | ImageSize = | IUPACName = | SystematicName = | OtherNames = silicon disulfide | Section1 = {{Chembox Identifiers | Abbreviations = | CASNo = 13759-10-9 | EINECS = | EINECSCASNO = | PubChem = | SMILES = | InChI = | RTECS = | MeSHName = | ChEBI = | KEGG = | ATCCode_prefix = | ATCCode_suffix = | ATC_Supplemental =}} | Section2 = {{Chembox Properties | Formula = SiS<sub>2</sub> | MolarMass = 92.218 g/mol | Appearance = white, grey, or brown needels<br/>rotten egg smell in moist air | Density = 1.853 g/cm<sup>3</sup> | MeltingPt = | Melting_notes = | BoilingPt = | Boiling_notes = 1090 °C (1360 K) sublimes | Solubility = decomposes | SolubleOther = | Solvent = | LogP = | VaporPressure = | HenryConstant = | AtmosphericOHRateConstant = | pKa = | pKb = }} | Section3 = {{Chembox Structure | CrystalStruct = [[orthorhombic]], [[rhombohedral]] | Coordination = [[tetrahedral]] | MolShape = }} | Section4 = {{Chembox Thermochemistry | DeltaHf = | DeltaHc = | Entropy = | HeatCapacity = }} | Section5 = {{Chembox Pharmacology | AdminRoutes = | Bioavail = | Metabolism = | HalfLife = | ProteinBound = | Excretion = | Legal_status = | Legal_US = | Legal_UK = | Legal_AU = | Legal_CA = | PregCat = | PregCat_AU = | PregCat_US = }} | Section6 = {{Chembox Explosive | ShockSens = | FrictionSens = | ExplosiveV = | REFactor = }} | Section7 = {{Chembox Hazards | EUClass = | EUIndex = | MainHazards = | NFPA-H = | NFPA-F = | NFPA-R = | NFPA-O = | RPhrases = | SPhrases = | RSPhrases = | FlashPt = | Autoignition = | ExploLimits = | LD50 = | PEL = }} | Section8 = {{Chembox Related | OtherAnions = [[silicon dioxide]] | OtherCations = [[carbon disulfide]]<br/>[[germanium disulfide]]<br/>[[tin(IV) sulfide]]<br/>[[lead(IV) sulfide]] | OtherFunctn = | Function = | OtherCpds = }} }} '''Silicon sulfide''' refers to the [[chemical compound]] with the formula [[Silicon|Si]][[Sulfur|S<sub>2</sub>]]. This material is polymeric and adopts a structure quite different from the corresponding silicon dioxide [[polymorphism (materials science)|polymorphs]]. The material consists of chains of edge-shared [[tetrahedra]], Si(&mu;-S)<sub>2</sub>Si(&mu;S)<sub>2</sub> etc. The Si---Si distances at 214 [[picometer]]s are shorter than conventional Si-Si [[single bond]]s.<ref>Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.</ref> The material is formed by heating silicon and sulfur or by the exchange reaction between SiO<sub>2</sub> and Al<sub>2</sub>S<sub>3</sub>. Like all silicon sulfur-compounds, SiS<sub>2</sub> hydrolyzes readily to release H<sub>2</sub>S and form hydrated silica gel. ==References== <references/> ==External links== [[Category:Sulfides]] [[Category:Silicon compounds]] [[Category:Inorganic compound stubs]] {{inorganic-compound-stub}}