Disilyne
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Disilyne is a silicon hydride with the formula Si
2H
2. Several isomers are possible, but none are sufficiently stable to be of practical value. Substituted disilynes contain a formal silicon–silicon triple bond and as such are sometimes written R2Si2 (where R is a substituent group). They are the silicon analogues of alkynes.
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Names | |||
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IUPAC name
Disilyne | |||
Identifiers | |||
3D model (JSmol) |
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PubChem CID |
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CompTox Dashboard (EPA) |
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Properties | |||
H2Si2 | |||
Molar mass | 58.186 g·mol−1 | ||
Related compounds | |||
Related compounds |
Acetylene methylacetylene | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The term silyne has two diverse meanings. Some chemists use it to refer to compounds containing a silicon–silicon triple bond,[1] by analogy to the carbon–carbon triple bond in alkynes, whereas others use the term to refer to compounds containing a silicon–carbon triple bond[2] by analogy to silene, which often refers to compounds containing silicon–carbon double bonds.[3] The term polysilyne can refer to the layer polymer (SiH)n or substituted derivatives.[1]