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Names | |
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Preferred IUPAC name
Diphenylsilanediol | |
Other names
dihydroxydiphenylsilane
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Identifiers | |
3D model (
JSmol)
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ChemSpider | |
ECHA InfoCard | 100.012.207 |
PubChem
CID
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UNII | |
CompTox Dashboard (
EPA)
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Properties | |
C12H12O2Si | |
Molar mass | 216.308 g/mol |
Appearance | Colorless crystals [1] |
Odor | Odorless [1] |
Density | 1.255 g/cm3 [2] |
Melting point | 144 to 148 °C (291 to 298 °F; 417 to 421 K) |
Structure [3] | |
Monoclinic | |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
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Diphenylsilanediol, Ph2Si(OH)2, is a silanol. The tetrahedral molecule forms hydrogen-bonded columns in the solid state. [4] It can be prepared by hydrolysis of diphenyldichlorosilane Ph2SiCl2. Diphenylsilanediol can act as an anticonvulsant, in a similar way to phenytoin. [4] Although the compound is stable in normal conditions, the presence of basic impurities can accelerate the condensation of the silanol groups.