Names | |
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IUPAC name
1,1,2,2,3,3,4,4,5,5,6,6-dodecamethylhexasilinane
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.021.691 |
EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
Si6(CH3)12 | |
Molar mass | 348.930 g·mol−1 |
Appearance | colorless solid |
Density | 0.988 g/cm3 |
Melting point | 254–257 °C (489–495 °F; 527–530 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Dodecamethylcyclohexasilane is the organosilicon compound with the formula Si6(CH3)12. It is one of the more readily prepared and easily handled polysilanes. Dodecamethylcyclohexasilane is produced by reduction of dimethyldichlorosilane with sodium-potassium alloy:[1]
where M is Na or K. The reaction also produces a polymer poly(dimethylsilylene) [−Si(CH3)2−]n and a cyclic compound decamethylcyclopentasilane Si5(CH3)10.
The chair conformer of dodecamethylcyclohexasilane was confirmed by X-ray crystallography.[2][3]
Dodecamethylcyclohexasilane reacts with potassium tert-butoxide to give the potassium derivative:[4]