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Disilane information


Disilane
Structural formula of disilane
Structural formula of disilane
Spacefill model of disilane
Spacefill model of disilane
Names
IUPAC name
Disilane
Identifiers
CAS Number
  • 1590-87-0 checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:30597 checkY
ChemSpider
  • 66736 checkY
ECHA InfoCard 100.014.970 Edit this at Wikidata
Gmelin Reference
368
PubChem CID
  • 74123
UNII
  • L4684339WI checkY
CompTox Dashboard (EPA)
  • DTXSID40166558 Edit this at Wikidata
InChI
  • InChI=1S/H6Si2/c1-2/h1-2H3 checkY
    Key: PZPGRFITIJYNEJ-UHFFFAOYSA-N checkY
  • InChI=1/H6Si2/c1-2/h1-2H3
    Key: PZPGRFITIJYNEJ-UHFFFAOYAQ
SMILES
  • [SiH3][SiH3]
Properties
Chemical formula
Si2H6
Molar mass 62.218 g·mol−1
Appearance Colourless gas
Density 2.7 g dm−3
Melting point −132 °C (−206 °F; 141 K)
Boiling point −14 °C (7 °F; 259 K)
Solubility in water
Reacts[1]
Vapor pressure 2940.2±0.0 mmHg at 25°C[2]
Conjugate acid Disilanium
Structure
Dipole moment
0 D
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Extremely flammable
Related compounds
Related disilanes
Hexamethyldisilane
Related compounds
  • Ethane
  • Digermane
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Disilane is a chemical compound with chemical formula Si2H6 that was identified in 1902 by Henri Moissan and Samuel Smiles (1877–1953). Moissan and Smiles reported disilane as being among the products formed by the action of dilute acids on metal silicides. Although these reactions had been previously investigated by Friedrich Woehler and Heinrich Buff between 1857 and 1858, Moissan and Smiles were the first to explicitly identify disilane. They referred to disilane as silicoethane. Higher members of the homologous series SinH2n+2 formed in these reactions were subsequently identified by Carl Somiesky (sometimes spelled "Karl Somieski") and Alfred Stock.

At standard temperature and pressure, disilane is a colourless, acrid gas. Disilane and ethane have similar structures, although disilane is much more reactive. Other compounds of the general formula Si2X6 (X = hydrogen, halogen, alkyl, aryl, and mixtures of these groups) are called disilanes. Disilane is a group 14 hydride.

  1. ^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99th ed.). CRC Press. pp. 4–47. ISBN 978-1138561632.
  2. ^ "Disilane CAS#:1590-87-0".

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Disilane

Last Update:

Disilane is a chemical compound with chemical formula Si2H6 that was identified in 1902 by Henri Moissan and Samuel Smiles (1877–1953). Moissan and Smiles...

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Catenation

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experimentally. Silicon can form sigma bonds to other silicon atoms (and disilane is the parent of this class of compounds). However, it is difficult to...

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Butane

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'tricarbane', and 'tetracarbane' as recommended for analogues of silane, 'disilane'; phosphane, 'triphosphane'; and sulfane, 'tetrasulfane'. W. B. Kay (1940)...

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Ethane

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'tricarbane', and 'tetracarbane' as recommended for analogues of silane, 'disilane'; phosphane, 'triphosphane'; and sulfane, 'tetrasulfane'." "Ethane – Compound...

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Palladium

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Alvarez, S (2002). "Hexakis(silyl)palladium(VI) or palladium(II with eta2-disilane ligands?". Angewandte Chemie International Edition in English. 41 (11):...

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Silicon compounds

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as SiH 4 and SiHCl 3 by Charles Friedel and Albert Ladenburg in 1867. Disilane (Si 2H 6) followed in 1902, when it was first made by Henri Moissan and...

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Silenes

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5 to 10% shorter than the Si-Si single bond lengths of corresponding disilanes. A peculiarity of disilenes is the trans-bending of the substituents,...

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Propane

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'tricarbane', and 'tetracarbane' as recommended for analogues of silane, 'disilane'; phosphane, 'triphosphane'; and sulfane, 'tetrasulfane'. Lide, David R...

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Group 14 hydride

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which thermal stability decreasing as n increases (e.g. silane SiH4 and disilane Si2H6), as are cyclosilanes (e.g. cyclopentasilane Si5H10 and cyclohexasilane...

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Onium ion

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silane) (should not be called siliconium disilanium, Si2H+7 (protonated disilane) further silanium cations, Si nH+ 2n+3 (protonated silanes) germonium,...

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Sodium hydride

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sodium fluoride: 6 NaH + 2 BF3 → B2H6 + 6 NaF Si–Si and S–S bonds in disilanes and disulfides are also reduced. A series of reduction reactions, including...

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Silanes

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also) includes silane itself but also compounds with Si-Si bonds including disilane and longer chains. Silanes with one, two, three, or four Si-H bonds are...

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Silane

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Methane Germane Stannane Plumbane Related compounds Phenylsilane Vinylsilane Disilane Trisilane Except where otherwise noted, data are given for materials in...

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List of gases

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NO2Cl −15 −145 81.5 13444-90-1 Chlorazide ClN3 −15 −100 77.47 13973-88-1 Disilane Si2H6 −14.8 −129.4 62 1590-87-0 Z-1,2,3,3,3-Pentafluoropropene CHF=CFCF3...

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List of inorganic compounds

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thiocyanate – CNSCN Cyanogen selenocyanate – CNSeCN Cyanogen azide – N3CN Disilane – Si2H6 Disulfur dichloride – S2Cl2 Dysprosium(III) chloride – DyCl3 Dysprosium...

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Cyclopentasilane

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polymerizes. As it is heated more silane is produced, and at 178°C it yields disilane. When heated to over 250°C it decomposes to a silicon hydrogen polymer...

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Germanium tetrafluoride

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3-bis(2,6-diisopropylphenyl)imidazolium fluoride. In combination with disilane, germanium tetrafluoride is used for in the synthesis of SiGe. Germanium(IV)...

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Silicyne

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that link the silicene hexagons use disilyne bonding alternating with disilane bonding, analogous to polyyne. Phillip F. Schewe & Ben Stein (3 September...

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Dispersion stabilized molecules

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extended compared to the gas phase Si-Si bond length of 2.331Å in the parent disilane H3SiSiH3. Despite the long bond length, superdisilane exhibits thermal...

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Polysilicon hydride

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monosilane (SiH4) and disilane (Si2H6). Polysilicon hydrides are intermediates in the high-temperature conversion of mono- and disilane to silicon and hydrogen...

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Disiloxane

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(fire diamond) 2 4 1 Related compounds Related compounds Dimethyl ether Disilane Silane Silanol Trisilane Except where otherwise noted, data are given for...

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Tetrasilane

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magnesium silicide with 25% hydrochloric acid produces 40% monosilane, 30% disilane, 15% trisilane, 10% tetrasilane and 5% higher silanes. The mixture can...

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Hiyama coupling

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Mori, I.; Nozaki, H. (1983), "Generation of metal-free silyl anions from disilanes and fluoride catalyst. Synthetic reactions with aldehydes and 1,3-dienes"...

Word Count : 1972

Silylgermane

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P403+P233, P405, P410+P403, P501 Related compounds Related compounds Ethane Disilane Digermane Methylsilane Methylgermane Except where otherwise noted, data...

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List of UN numbers 3501 to 3600

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batteries packed with equipment, with organic electrolyte UN 3553 2.1 Disilane UN 3554 8 Gallium contained in manufactured articles UN 3555 3...

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Ketenyl anion

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They motivated this goals from recent reactivity study of silylene and disilane activating CO and isolating intermediate, hypothesizing that silica-ketenyl...

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