ChemicalBook--->CAS DataBase List--->16343-18-3

16343-18-3

16343-18-3 Structure

16343-18-3 Structure
IdentificationBack Directory
[Name]

1,1,2,2-TETRAPHENYLDISILANE
[CAS]

16343-18-3
[Synonyms]

TPDS
1,1,2,2-TETRAPHENYLDISILANE
Disilane, 1,1,2,2-tetraphenyl-
[Molecular Formula]

C24H22Si2
[MDL Number]

MFCD00093170
[MOL File]

16343-18-3.mol
[Molecular Weight]

366.6
Chemical PropertiesBack Directory
[Melting point ]

80 °C
[Boiling point ]

441.7±18.0 °C(Predicted)
[solubility ]

soluble in chloroform and most organic solvents, less soluble in ethanol.
[form ]

powder to crystal
[color ]

White to Light yellow to Light orange
[Hydrolytic Sensitivity]

4: no reaction with water under neutral conditions
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319
[Precautionary statements ]

P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P
[Risk Statements ]

36/37/38
[Safety Statements ]

26-36/37/39
[HS Code ]

2931.90.6000
Hazard InformationBack Directory
[Physical properties]

mp 79–80 °C
[Uses]

1,1,2,2-tetraphenyldisilane (TPDS) is more effective than pentamethyldisilane, since one phenyl group on the Si–H group probably reduces by 2 kcal/mol the Si–H bond dissociation energy. TPDS is used for radical reduction, intramolecular and intermolecular carbon–carbon bond formation, 1,2-elimination, etc., of halides, chalcogenides, and xanthates.
[Preparation]

generally, 1,1,2,2-tetraphenyldisilane is prepared by the coupling reaction of diphenylsilane in the presence of diphenyltitanocene without solvent under heating conditions at 110°Cfor 24 h.
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