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HomeProduct name listDIPHENYLDIFLUOROSILANE

DIPHENYLDIFLUOROSILANE

  • CAS NO.:312-40-3
  • Empirical Formula: C12H10F2Si
  • Molecular Weight: 220.29
  • MDL number: MFCD00017898
  • EINECS: 206-226-8
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-04-23 13:52:06
DIPHENYLDIFLUOROSILANE Structural

What is DIPHENYLDIFLUOROSILANE?

Physical properties

bp 246–247 °C, bp 156°C50 mmHg, bp 66–70°C0.5 mmHg; d 1.155 g cm?1.

The Uses of DIPHENYLDIFLUOROSILANE

A moisture insensitive equivalent of diphenyldichlorosilane that is more reactive toward nucleophiles. Source of phenyl group in the Hiyama coupling reaction. More stable to electrophilic aromatic substitution than diphenyldichlorosilane.
Eaborn reported that fluorosilanes are more reactive toward organometallic reagents than the corresponding chlorosilanes, and therefore more suited for preparation of sterically hindered organosilanes.

Preparation

commercially available. Readily prepared by oxidation of diphenylsilane with CuF2, or by treatment of diphenyldichlorosilane with HF, ZnF2, NaBF4, or (NH4)2SiF6. Rate enhancements of the chlorine–fluorine exchange have been achieved with ultrasound and addition of water. Diethoxydiphenylsilane and related structures are converted to diphenyldifluorosilane with 48% HF(aq).

Properties of DIPHENYLDIFLUOROSILANE

Boiling point: 159°C 50mm
Density  1.145
refractive index  1.522
Flash point: 87°C
storage temp.  under inert gas (nitrogen or Argon) at 2-8°C
solubility  soluble in ether.
Specific Gravity 1.145
Hydrolytic Sensitivity 8: reacts rapidly with moisture, water, protic solvents
CAS DataBase Reference 312-40-3(CAS DataBase Reference)
EPA Substance Registry System Silane, difluorodiphenyl- (312-40-3)

Safety information for DIPHENYLDIFLUOROSILANE

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Corrosion
Corrosives
GHS05
GHS Hazard Statements H314:Skin corrosion/irritation
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

Computed Descriptors for DIPHENYLDIFLUOROSILANE

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