Diphenylsilanediol

Diphenylsilanediol

Names
Other names dihydroxydiphenylsilane
Identifiers
CAS Number	947-42-2
PubChem	24867114
InChI InChI=1/C12H12O2Si/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10,13-14H/i1-12,2-12,3-12,4-12,5-12,6-12,7-12,8-12,9-12,10-12,11-12,12-12,13-16,14-16,15-28
Properties
Chemical formula	C12H12O2Si
Molar mass	216.308 g/mol
Density	1.255 g/cm^3[1]
Melting point	144 to 148 °C (291 to 298 °F; 417 to 421 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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Infobox references

Diphenylsilanediol, Ph₂Si(OH)₂, is a silanol. The tetrahedral molecule forms hydrogen-bonded columns in the solid state.^[2] It can be prepared by hydrolysis of diphenyldichlorosilane Ph₂SiCl₂. Diphenylsilanediol can act as an anticonvulsant, in a similar way to phenytoin.^[2] Although the compound is stable in normal conditions, the presence of basic impurities can accelerate the condensation of the silanol groups.

References

1. T. J. Kistenmacher, M. Rossi, L. K. Frevel (October 1978). "Crystal data for diphenylsilanediol, (C₆H₃)₂Si(OH)₂". J. Appl. Cryst. 11 (5): 670–671. doi:10.1107/S002188987801420X.
2. J. K. Fawcett, N. Camerman, A. Camerman (1977). "Stereochemical basis of anticonvulsant drug action. VI. Crystal and molecular structure of diphenylsilanediol". Can. J. Chem. 55 (20): 3631–3635. doi:10.1139/v77-510.